Wikipedia:WikiProject Missing encyclopedic articles/Global Names Index/U
- Uacaria
- Uacaria Lydekker 1891
- uachi Mielke 1985
- Uafatua Baker 1940
- Uafatua Baker 1949
- Uahuka affinis
- Uahuka affinis Berland 1935
- Uahuka affinis Berland 1939
- Uahuka affinis Berland, 1935
- Uahuka Berland 1935
- Uahuka Berland 1939
- Uahuka spinifrons
- Uahuka spinifrons Berland 1935
- Uahuka spinifrons Berland 1939
- Uahuka spinifrons Berland, 1935
- Uanuka Baker 1938
- Uapaca acuminata
- Uapaca acuminata (Hutch.) Pax & K. Hoffm. in Engl.
- Uapaca acuminata (Hutch.) Pax & K.Hoffm.
- Uapaca acuminata Pax & K.Hoffm.
- Uapaca albida
- Uapaca albida De Wild.
- Uapaca ambanjensis
- Uapaca ambanjensis Leandri
- Uapaca amplifolia
- Uapaca amplifolia Denis
- Uapaca angolensis
- Uapaca angolensis Hutch. ex Pax & K.Hoffm.
- Uapaca angolensis Hutchinson ex Pax & K.Hoffm.
- Uapaca angustifolia
- Uapaca angustifolia Denis
- Uapaca angustipyrena
- Uapaca angustipyrena De Wild.
- Uapaca Baill.
- Uapaca Baillon 1858
- Uapaca Baillon, 1858
- Uapaca benguelensis
- Uapaca benguelensis f. glabra P.A.Duvign.
- Uapaca benguelensis f. pilosa P.A.Duvign.
- Uapaca benguelensis forma glabra P.A.Duvign.
- Uapaca benguelensis forma pilosa P.A.Duvign.
- Uapaca benguelensis glabra
- Uapaca benguelensis Muell. Arg.
- Uapaca benguelensis Müll. Arg.
- Uapaca benguelensis Müll. Arg. fo. glabra P.A. Duvign.
- Uaranus Gray 1845
- Uaranus lunatus
- Uaranus lunatus GRAY 1845
- Uaranus lunatus GRAY 1845: 10
- Uaranus rudicollis
- Uaranus rudicollis GRAY 1845
- Uaranus rudicollis GRAY 1845: 10
- Uarbrichthyidae
- Uarbryichthyidae
- Uarbryichthyidae Bartram 1977
- Uarbryichthys
- Uarbryichthys incertus
- Uarbryichthys incertus Wade 1954
- Uarbryichthys latus
- Uarbryichthys latus Wade 1941
- Uarbryichthys Wade 1941
- Uarbyichthys
- Uarbyichthys latus
- uarnacoides (Bleeker 1852)
- uarnacoides Bleeker 1852
- uarnak (Forssk�l 1775)
- uarnak Forssk�l 1775
- Uarrulax schmackeri
- Uarrulax schmackeri Hartlaub 1898
- Uarthrus
- Uarthrus instabilis
- Uarthrus instabilis Raasch 1939
- Uarthrus Raasch 1939
- Uaru
- Uatchitodon kroehleri
- Uatchitodon kroehleri Sues 1991
- Uatchitodon Sues 1991
- uatio Monniot 1991
- uatumani Barreira e Castro 1990
- Uaupesia amazona
- Uaupesia Bechyne 1957
- Uaupesia Bechyné 1958
- Uaupesia romani
- Uaupesia romani Bechyne 1958
- Uaupesia tijucana
- Uaupesia tijucana Bechyne 1958
- Uba fallai
- Uba fallai Fletcher 1938
- Uba Fletcher 1938
- Ubacisi
- Ubacisi capensis
- Ubacisi capensis (Griswold 1987)
- Ubacisi capensis (Griswold, 1987)
- Ubacisi Griswold 2001
- Ubaena
- Ubaena dolabella
- Ubaena dolabella (Druce 1886)
- Ubaena dolabella (Druce, 1886)
- Ubaena dolabella Druce 1886
- Ubaena fuelleborniana
- Ubaena fuelleborniana Karsch 1900
- Ubaena fulleborniana
- Ubaena fulleborniana Karsch 1900
- Ubaena Karsch 1900
- Ubaena lequeuxi
- Ubaena lequeuxi Darge & Terral 1988
- Ubaena moesta
- Ubaena moesta Rebel 1917
- Ubaena periculosa
- Ubaena periculosa Darge & Terral 1988
- Ubaena sabunii
- Ubaena sabunii Darge & Kilumile 2004
- Ubaghsia
- Ubaghsia arcifera
- Ubaghsia arcifera Jullien 1886
- Uber conica Lam.
- Uber conicum
- Uber conicum (Lamarck)
- Uber Corbula isocardiaeformis
- Uber Cotton & Godfrey 1931
- uber Djakonov 1927
- Uber Humphrey 1797
- Uber incei
- Uber labyrintheum
- Uber laxus
- Uber laxus Finlay 1926
- Uber maura
- Uber mellosum
- Uber mellosum Hedley 1924
- Uber obstructus
- Uber obstructus Marwick
- Uber pateaensis
- Uber pateaensis Marwick 1924
- Uber plumbea
- Uber plumbea (Lamarck)
- Uber simiae Deshayes
- Uber strangei
- Uber subjugum
- Uber subjugum Cotton 1947
- Uberaba
- Uberaba brevicauda
- Uberaba brevicauda Bruner 1915
- Uberaba brevicauda Bruner, 1915
- Uberaba brevicauda Bruner, L. 1915
- Ubiaea J. Gay ex A. Richard
- Ubiaea J. Gay ex A. Richard 1848
- Ubiaea J. Gay ex A. Richard, 1848
- Ubiaea J.Gay
- Ubiaea schimperi
- Ubiaea schimperi (Sch. Bip.) A. Rich.
- Ubiaea schimperi J.Gay
- ubianensis Caullery 1944
- Ubichia
- Ubichia ganglbaueri
- Ubichia ganglbaueri Reitter, E. 1912
- Ubichia ganglbaueri Reitter, E., 1912
- Ubichia holdhausi
- Ubichia holdhausi Reitter, E. 1914
- Ubichia holdhausi Reitter, E., 1914
- Ubichia leonhardi
- Ubichia leonhardi Reitter 1914
- Ubichia leonhardi Reitter, E. 1914
- Ubichia leonhardi Reitter, E., 1914
- Ubida
- Ubida amochla
- Ubida amochla Turner 1922
- Ubida cretaceipars
- Ubida delinqualis
- Ubida delinqualis Dyar 1913
- Ubida gynaecella
- Ubida hetaerica
- Ubida hetaerica Turner 1911
- Ubida holomochla
- Ubochea Baill.
- Ubochea Baillon 1891
- Ubochea Baillon, 1891
- Ubochea dichotoma
- Ubochea dichotoma Baill.
- Ubogebia
- Ubogebia hexaceras
- Ubristes chrysopyga
- Ubristes chrysopyga Giglio-Tos 1892
- Ubristes chrysopyga Giglio-Tos, 1892
- Ubristes chrysopygus
- Ubristes chrysopygus Giglio
- Ubristes flavitibia
- Ubristes flavitibia Walker
- Ubristes flavitibia Walker 1852
- Ubristes flavitibia Walker, 1852
- Ubristes litoralis
- Ubristes litoralis Papavero
- Ubristes litoralis Papavero 1964
- Ubristes litoralis Papavero, 1964
- Ubristes plaumanni
- Ubristes plaumanni Curran
- Ubristes plaumanni Curran 1940
- Ubristes plaumanni Curran, 1940
- Ubristes puerilis
- Ubristes puerilis Doesburg
- Ubristes puerilis Doesburg 1966
- Ubristes puerilis Doesburg, 1966
- Ubristes puerilis van
- Ubristes puerilis van Doesburg 1966
- Ubristes tenuicaudum
- Ubristes ulopodus
- Ubristes ulopodus Hull 1944
- Ubristes Walker 1852
- Ubrizsya
- Ubrizsya Negru
- Ubsanuria kysylensis
- Ubsanuria Novozhilov & Varentzov 1956
- Ubsanuria Novozhilov & Verentzov 1956
- Ubychia ellipsoidalis
- Ubychia ellipsoidalis Osella & Nonveiller 1983
- Ubychia ellipsoidalis Osella 1982
- Ubychia ganglbaueri
- Ubychia ganglbaueri (Reitter 1912)
- Ubychia holdhausi
- Ubychia holdhausi (Ganglbauer 1903)
- Ubychia holdhausi Ganglbauer, 1903
- Ubychia holdhausi Ganglebauer, L. 1906
- Ubychia holdhausi Ganglebauer, L., 1906
- Ubychia icari
- Ubychia icari Osella 1980
- Ubychia leonhardi
- Ubychia leonhardi leonhardi
- Ubychia leonhardi leonhardi Reitter 1914
- Ubychia leonhardi Reitter 1914
- Ubychia leonhardi ticinensis
- Ubychia leonhardi ticinensis Osella 1977
- Ubychia mingrelica
- Ubychia mingrelica (Reitter 1894)
- Ubychia mingrelica iranica
- Ubychia mingrelica iranica Osella 1986
- Ubychia mingrelicus
- Ubychia mingrelicus Ganglebauer, L. 1906
- Ubychia mingrelicus Ganglebauer, L., 1906
- Ubychia reitteri
- Ubychia reitteri (Ganglbauer 1906)
- Ubychia reitteri Ganglbauer, 1906
- Ubychia Rost
- Uca (Afruca)
- Uca (Afruca) Crane 1975
- Uca (Amphiuca)
- Uca (Amphiuca) chlorophthalmus chlorophthalmus
- Uca (Amphiuca) Crane 1975
- Uca (Amphiuca) inversa inversa
- Uca (Amphiuca) inversa sindensis (Alcock 1900)
- Uca (Australuca)
- Uca (Australuca) bellator minima Crane 1975
- Uca (Australuca) Crane 1975
- Uca (Australuca) polita Crane 1975
- Uca (Australuca) seismella Crane 1975
- Uca (Boboruca)
- Uca (Boboruca) Crane 1975
- Uca (Boboruca) thayeri
- Uca (Celuca)
- Uca (Celuca) Crane 1975
- Uca (Celuca) cumulanta
- Uca (Celuca) deichmanni
- Uca (Celuca) lactea annulipes
- Uca (Celuca) latimanus
- Uca (Celuca) leptodactyla
- Uca (Celuca) musica terpsichores
- Uca (Celuca) perplexa
- Uca (Celuca) stenodactyla
- Uca (Celuca) triangularis bengali
- Uca (Celuca) uruguayensis
- Uca (Celuca) uruguayensis Nobili 1901
- Uca (Cranuca)
- Ucebia ? granulosa Sivov
- Ucebia ara
- Ucebia ara Walcott 1924
- Ucebia lata
- Ucebia lata Raymond
- Ucebia simplex
- Ucebia simplex Raymond
- Ucebia simplex Raymond 1937
- Ucebia WALCOTT 1924
- Ucebia Walcott 1925
- Ucekia
- Ucekia Walcott 1924
- Uceolaria patellae
- Ucetia
- Ucetia Walker 1866
- Uchauxia badri
- Uchauxia badri Abbass 1973
- Uchauxia beali
- Uchauxia Cossmann 1906
- Uchauxia Cossmann 1907
- Uchauxia forbesiana
- Uchauxia forbesiana (d'Orbigny 1850)
- Uchauxia fraasi
- Uchauxia gradata
- Uchauxia gradata Tsankov & Motekova 1981
- Uchauxia kirki
- Uchauxia poblana
- Uchauxia quadrigranosa
- Uchauxia quadrigranosa Cox 1925
- Uchauxia richei
- Uchauxia richei Roman & Mazeran 1920
- Uchauxia vidalinum
- Uchauxia vidalinum (Vilanova 1859)
- Uchauxia wisei
- Uchauxia wisei Abbass 1973
- Uchauxia yunshanensis
- Uchauxia yunshanensis Pan & Zhu 2004
- Uchauxia? poblana Alencaster de Cserna 1956
- uchelbeluuensis Mah 2005
- Uchianurinae
- Uchida
- Uchida abdominalis
- Uchida abdominalis (Piaget 1880)
- Uchida abdominalis Ansari 1951
- Ucia Walker 1867
- Ucides
- Ucides (L.)
- Ucides cordatus
- Ucides cordatus (Brachyura)
- Ucides cordatus (Linnaeus 1763)
- Ucides cordatus (Linnaeus, 1763)
- Ucides cordatus (Marcgrave's 1648)
- Ucides cordatus cordatus
- Ucides cordatus cordatus (Linnaeus 1763)
- Ucides cordatus cordatus (Linnaeus, 1763)
- Ucides occidentalis
- Ucides occidentalis (Ortmann 1897)
- Ucides Rathbun 1897
- Ucides Rathbun, 1897
- Ucidinae
- Ucidinae Stevcic 2005
- Uciger foetidus
- Ucilla
- Ucilla fusconigra
- Ucinaria
- Ucini
- Ucini Pretzmann 1983
- Ucinulus (?) sp.
- Ucla bolini
- Ucla bolini Myers
- Ucla bolini Myers 1934
- Ucla bolini Myers, 1934
- Ucla Holleman 1993
- Ucla Holleman 1993 sec. Eschmeyer 1998
- Ucla Holleman 1993 sec. Eschmeyer 2004
- Ucla Holleman, 1993
- Ucla xenogramma
- Ucla xenogramma Holleman 1993
- Ucla xenogramma Holleman, 1993
- Ucla xenogrammus
- Ucla xenogrammus Holleman 1993
- Ucla xenogrammus Holleman 1993 sec. Eschmeyer 2004
- Ucla xenogrammus Holleman, 1993
- Uclesia
- Uclesia antiqua
- Uclesia antiqua Mesnil 1963
- Uclesia antiqua Mesnil, 1963
- Uclesia brevinervis
- Uclesia brevinervis Mesnil 1974
- Uclesia brevinervis Mesnil, 1974
- Uclesia excavata
- Uclesia excavata Herting 1973
- Uclesia excavata Herting, 1973
- Uclesia fumipennis
- Uclesia fumipennis Girschner 1901
- Uclesia fumipennis Girschner, 1901
- Uclesia Girschner 1901
- Ucnopsolen cordatum
- Ucnopsolen cordatum Raf.
- Ucnopsolen Raf.
- Ucnopsolen Rafinesque 1840
- Ucnopsolen Rafinesque, 1840
- Ucographa A. Massal. 1860
- Ucographa A. Massalongo 1860
- Ucographa A. Massalongo, 1860
- Ucographa lecanatis
- Ucographa lecanatis A. Massal.
- Ucona
- Ucona acaenae
- Ucona acaenae Smlth 1973
- Ucona Smith 1974
- Ucona Smlth 1973
- Ucria Targ. ex Pfeiff.
- Ucriana
- Ucriana hamelliae
- Ucriana hamelliae D.Dietr.
- Ucriana hirsuta
- Ucriana hirsuta (Moric. ex DC.) D.Dietr.
- Ucriana hirsuta D.Dietr.
- Ucriana humboldtii
- Ucriana humboldtii Spreng.
- Ucriana insignis
- Ucriana insignis (Nees) Willd. ex Spreng.
- Ucriana insignis Willd. ex Spreng.
- Ucriana longiflora
- Ucriana longiflora (Griseb.) D.Dietr.
- Ucriana longiflora D.Dietr.
- Ucriana longifolia
- Ucriana longifolia D.Dietr.
- Ucriana longifolia Spreng.
- Ucriana macrophylla
- Ucriana macrophylla (Hemsl.) D.Dietr.
- Ucriana macrophylla D.Dietr.
- Ucriana mussaendae
- Ucriana mussaendae D.Dietr.
- Ucriana mutisii
- Ucriana mutisii (Kunth) Spreng.
- Ucriana mutisii Spreng.
- Ucriana racemosa
- Ucriana racemosa Schum. & Thonn.
- Ucriana racemosa Schumach. & Thonn.
- Ucsunajphyton S. A. Stepanov, 1975
- Ucsunajphyton S.A. Stepanov 1975
- Uculegon pulchellus
- Uculegon pulchellus Champion 1884
- Ucumariidae
- Ucumariidae Sanchez 2003
- Ucumariidae Sanchez in Sanchez & Vaccari 2003
- Ucumaris
- Ucumaris conradoi
- Ucumaris conradoi Sanchez 2003
- Ucumaris Sanchez 2003
- Ucumaris Sanchez in Sanchez & Vaccari 2003
- Ucumaropsis
- Ucumaropsis lermaensis
- Ucumaropsis lermaensis Sanchez 2005
- Ucumaropsis Sanchez 2005
- Uda Girault 1930
- Uda prima
- Uda prima Girault 1930
- Uda prima Girault, 1930
- Udabnocerini Burchak-Abramovich & Gabashvili 1968
- Udabnocerus
- Udabnocerus Burchak-Abramovich & Gabashvili 1968
- Udabnocerus georgicus
- Udabnocerus georgicus Burchak-Abramovich & Gabashvili 1968
- Udabnopithecus
- Udabnopithecus Burchak-Abramovich & Gabashvili 1947
- Udabnopithecus garedziensis
- Udabnopithecus garedziensis Burtshak Abramovitch & Gabashvili 1939
- Udabnopithecus garedziensis Burtshak-Abramovitch & Gabashvili 1939
- Udabnopithecus Steslicka 1952
- Udabnopitkecus garedziensis
- Udaeothrips
- Udaeothrips Hood 1957
- Udaeus
- [[Udaeus Herrich-Schaefferr [1856]]]
- Udaeus Herrich-Schäffer 1855
- Udaeus Herrich-Schäffer 1856
- Udaiana
- Udaiana cynis
- Udaiana cynis (Hewitson, 1866)
- Udaiana cynis Hewitson 1866
- Udaiana cynis Hewitson, 1866
- Udaiana cynis Moulton 1923
- Udaiana cynis suluensis
- Uddenia carolinensis
- Uddenia fragilis
- Uddenia fragilis Harbison 1945
- Uddenia Stephenson 1941
- Uddenia texana
- Uddenia texana Stephenson 1941
- Uddenites
- Uddenites Boese 1917
- Uddenites Bose 1917
- Uddenites convexus
- Uddenites ferganensis
- Uddenites ferganensis Ruzhentzev 1957
- Uddenites harlani
- Uddenites minor
- Uddenites minor Bose 1917
- Uddenites oweni
- Uddenites oweni Miller & Famish 1940
- Uddenites oweni Miller and Furnish 1940
- Uddenites postsakmarensis
- Uddenites schucherli
- Uddenites schucherti
- Uddenites serratus
- Uddenites tuberculatus
- Uddenitidae
- Uddenitinae
- Uddenitinae Miller & Famish 1940
- Uddenoceras
- Uddenoceras changmeense
- Uddenoceras changmeense Liang 1987
- Udea a. abstrusa
- Udea a. cordilleralis
- Udea a. pullmanensis
- Udea ablactalis
- Udea ablactalis (Walker 1859)
- Udea absolutalis
- Udea absolutalis (Dyar 1913)
- Udea abstrusa
- Udea abstrusa Munroe 1966
- Udea abstrusa subarctica
- Udea accolalis
- Udea accolalis (Zeller 1867)
- Udea accolalis (Zeller, 1867)
- Udea accolalis (Zeller,1867)
- Udea adversa
- Udea adversa (Philpott 1917b)
- Udea adversa (Philpott, 1917b) E
- Udea adversa Philpott 1917
- Udea aenigmatica
- Udea aenigmatica (Heinrich 1931)
- Udea aenigmatica Heinrich 1931
- Udea afghanalis
- Udea afghanalis Amsel 1970
- Udea alaicalis
- Udea alaicalis Caradja 1916
- Udea alaskalis
- Udea alaskalis (Gibson 1920)
- Udea alaskalis Gibs.
- Udea alaskalis Gibson 1920
- Udinia bruncki
- Udinia bruncki Hanford 1974
- Udinia bruncki Hanford, 1974
- Udinia catori
- Udinia catori (Green 1915)
- Udinia catori (Green, 1915)
- Udinia catori De Lotto 1963
- Udinia catori De Lotto, 1963
- Udinia De Lotto 1963
- Udinia exoleta
- Udinia exoleta De Lotto 1963
- Udinia exoleta De Lotto, 1963
- Udinia farquharsoni
- Udinia farquharsoni (Newstead 1922)
- Udinia farquharsoni (Newstead, 1922)
- Udinia farquharsoni De Lotto 1963
- Udinia farquharsoni De Lotto, 1963
- Udinia farquharsoni Newst.
- Udinia glabra
- Udinia glabra De Lotto 1963
- Udinia glabra De Lotto, 1963
- Udinia ikoyensis
- Udinia ikoyensis Hanford 1974
- Udinia ikoyensis Hanford, 1974
- Udinia lamborni
- Udinia lamborni (Newstead 1914)
- Udinia lamborni (Newstead, 1914)
- Udinia lamborni Ben-Dov et al. 1997
- Udinia lamborni Ben-Dov et al., 1997
- Udjanella SOLOVIEV 1964
- Udngama splendens
- Udngama splendens Li 1940
- Udngama splendens Li, 1940
- Udniula
- Udobaenus Sundevall 1860
- Udodesmus
- Udodesmus Cook 1896
- Udodesmus Cook, 1896
- Udodesmus erinaceus minor
- Udodesmus erinaceus nigeriensis
- Udodesmus erinaceus var. minor
- Udodesmus erinaceus var. nigeriensis
- Udodesmus guineae
- Udodesmus guineae Silvestri 1927
- Udodesmus simplex
- Udodesmus simplex Silvestri 1927
- Udodesmus tekeanus
- Udodesmus tekeanus Mauries & Maurin 1981
- Udodesmus telluster
- Udodesmus telluster Cook 1896
- Udodesmus telluster Cook, 1896
- Udokania
- Udokania leitesi
- Udokania leitesi Sajutina & Vilmova 1990
- Udokania problematica
- Udonchinae
- Udonchinae Abebe & Coomans 1996
- Udonchinae Eyualem & Coomans 1996
- Udonchus
- Udonchus Cobb 1913
- Udonchus Cobb, 1913
- Udonchus crassicauda
- Udonchus crassicauda (Schneider 1937)
- Udranomia ambla (Herr.-Sohaff. , MS. )
- Udranomia ambla (Herr.-Sohaff., MS. )
- Udranomia Butl.
- Udranomia Butler 1870
- Udranomia eurus
- Udranomia eurus Mabille & Boullet 1919
- Udranomia kikkawai
- Udranomia kikkawai (Weeks, 1906)
- Udranomia kikkawai Weeks 1906
- Udranomia orcinus
- Udranomia orcinus (Felder, 1867)
- Udranomia orcinus Feld.
- Udranomia orcinus Felder & Felder 1867
- Udranomia spitzi
- Udranomia spitzi (Hayward, 1942)
- Udranomia spitzi Hayward 1942
- Udranomia spitzii
- udrescui Greenwood et all 1991
- Udschasphinctes Mesezhnikov 1972
- Udschimya
- Udschimya Sasaki 1884
- Udschimyia sericaria
- Udschimyia sericaria Rond.
- Uduba dahli
- Uduba dahli Simon 1903
- Uduba dahli Simon, 1903
- Uduba funerea
- Uduba funerea Simon, 1906
- Uduba inhonesta
- Uduba inhonesta Benoit, 1972
- Uduba inhonesta Simon, 1906
- Uduba madagascariensis
- Uduba madagascariensis (Vinson 1863)
- Uduba madagascariensis (Vinson, 1863)
- Uduba madagascariensis Simon, 1880
- Uduba madagascariensis Simon, 1906
- Uduba madagascariensis Vinson
- Uduba rufipes
- Uduba Simon 1880
- Udugama
- Udugama exoleta
- Udugama exoleta Melichar 1903
- Udugama flavocarinata
- Udugama Melichar 1903
- Udugama splendens
- Udugama splendens Distant 1906
- Udugama splendens Distant, 1906
- Udumbarea nainiensis
- Udumbaria
- Udumbaria Crover 1963
- Udumbaria Grover 1963
- Udumbaria Grover, 1963
- Udvardya elegans
- Udvardya elegans (Szombathy 1915)
- Udvardya elegans (Szombathy, 1915)
- Udvardya elegans Prószynski, 1987
- Udvardya Proszynski 1987
- Udvardya Proszynski 1991
- Udvardya Prószynski 1992
- Udzhaites missarzhevskyi
- Udzhaites missarzhevskyi Vassiljeva 1986
- Udzhaites Vassiljeva 1986
- Udzhella
- Udzhella Vassiljeva 1990
- Ueana bergerae
- Ueana bergerae Boulard 1993
- Ueana boudinoti
- Ueana boudinoti Boulard 1992
- Ueana bouleti
- Ueana bouleti Boulard 1993
- Ueana crepitans
- Ueana crepitans Boulard 1992
- Ueana desserti
- Ueana desserti Boulard 1997
- Ueana Distant
- Ueana Distant 1905
- Ueana fungigera
- Ueana fungigera Boulard 1991
- Ueana harmonia
- Ueana hyalinata
- Ueana hyalinata Boulard 1994
- Ueana latreillae
- Ueana latreillae Boulard 1993
- Ueana letocarti
- Ueana letocarti Boulard 1992
- Ueana lullae
- Ueana lullae Boulard 1994
- Ueana montaguei
- Ueana montaguei Distant 1920
- Ueana polymnia
- Ueana procera
- Ueana procera Boulard 1994
- Ueana quirosi
- uebelackerae Ding, Leicher & Westheide 1998
- uebelackerae Hernandez-Alcantra & Solis-Weiss 2000
- uebelackerae Ruiz-Ramirez & Salazar-Vallejo 2001
- uebelackerae San Martin 1991
- uebelackerae Tovar-Hernandez 2005
- uebelackerae Wolf 1986
- Uebelinia
- Uebelinia abyssinica
- Uebelinia abyssinica Hochst.
- Uebelinia abyssinica Hochst. (1837)
- Uebelinia abyssinica Hochstetter
- Uebelinia abyssinica Hochstetter 1841
- Uebelinia crassifolia
- Uebelinia crassifolia T.C. Fries
- Uebelinia crassifolia T.C.E. Fries
- Uebelinia crassifolia T.C.E.Fr.
- Uebelinia erlangeriana
- Uebelinia erlangeriana T.C.E.Fr.
- Uebelinia hispida
- Uebelinia hispida Pax
- Uebelinia Hochst.
- Uebelinia Hochstetter 1841
- Uebelinia Hochstetter, 1841
- Uebelinia kigesiensis
- Uebelinia kigesiensis Good
- Uebelinia kigesiensis R. Good
- Uebelinia kigesiensis R.D.Good
- Uebelinia kigesiensis R.D.Good ssp. kigesiensis
- Uebelinia kigesiensis R.D.Good subsp. ragazziana Ousted
- Uechtritzia armena
- Uechtritzia armena Freyn
- Uechtritzia armena Freyn & Sint
- Uechtritzia armena Freyn & Sint.
- Uechtritzia armena Freyn & Sint. ex Freyn
- Uechtritzia Freyn
- Uechtritzia Freyn 1892
- Uechtritzia Freyn, 1892
- Uechtritzia kokanica
- Uechtritzia kokanica (Regel & Schmalh.) Pobed.
- Uechtritzia lacei
- Uechtritzia lacei (Watt) C.Jeffrey
- Ueckerconulus
- Ueckerconulus duplicans
- Ueckerconulus feuguerollensis
- Ueckerconulus feuguerollensis Gruendel 2007
- Ueckerconulus formosus
- Ueckerconulus formosus Gruendel 2000
- Ueckerconulus Gruendel 2000
- Ueckerconulus Gründel 2000
- Ueckerconulus monilitectus
- Ueckerconulus multicostatus
- Ueckerconulus noricus
- Ueckerconulus noricus Nuetzel & Erwin 2004
- Ueckerconulus? multicostatus
- Ueckerconulus? multicostatus Gruendel 2000
- Ueckeritzella
- Ueckeritzella Grundel 1998
- Ueckeritzella mothsi
- uedai Watanabe & Tokioka 1972
- Uedaozephyrus
- Uedaozephyrus Koiwaya 2007
- Uedaozephyrus kuromon
- Uedaozephyrus kuromon (Sugiyama 1994)
- Uegitgianis Gianferrari 1923
- Uegitgianis zammaranoi
- Uegitgianis zammaranoi Gianferrari 1923
- Uegitglanis
- Uegitglanis Gianferrari 1923
- Uegitglanis Gianferrari 1923 sec. Eschmeyer 1998
- Uegitglanis Gianferrari 1923 sec. Eschmeyer 2004
- Uegitglanis Gianferrari, 1923
- Uegitglanis zammaramoi
- Uegitglanis zammaranoi
- Uegitglanis zammaranoi Gianferrari 1923
- Uegitglanis zammaranoi Gianferrari 1923 sec. Eschmeyer 2004
- Uegitglanis zammaranoi Gianferrari, 1923
- Uegitglanis zammaroni
- Ueleana Carvalho 1951
- Ueleana longicuneata
- Ueleana longicuneata Carvalho 1951
- Uelia
- Uelia Razowski 1982
- Uelia sepidapex
- Uelia sepidapex Razowski 1982
- Uenanthracus Kasahara 1994
- Uenanthracus perigonoides
- Uenanthracus perigonoides Kasahara 1994
- Uenasellus
- Uenasellus iyoensis
- Uenasellus iyoensis (Matsumoto 1960)
- Uenasellus iyoensis (Matsumoto, 1960)
- Uenasellus iyoensis Matsumoto 1960
- Uenasellus Matsumoto 1962
- Uenasellus Matsumoto, 1962
- Uenaxonopsis
- Uenaxonopsis Imamura 1961
- Uenaxonopsis nazensis
- uenfi Novelli, Nunan & Lima 2000
- Uenia
- Uenia kobai
- Uenia kobai (Ueno 1940)
- Uenia Naganawa 2001
- Uenoa
- Uenoa arcuata
- Uenoa arcuata Wiggins, Weaver & Unzicker 1985
- Uenoa arcuata Wiggins, Weaver & Unzicker, 1985
- Uenoa burmana
- Uenoa burmana (Mosely 1939)
- Uenoa burmana (Mosely, 1939)
- Uenoa fernandoschmidi
- Uenoa fernandoschmidi Botosaneanu 1979
- Uenoa fernandoschmidi Botosaneanu, 1979
- Uenoa hiberna
- Uestiudia Oiticica 1955
- Uestiudia Oiticica Filho 1955
- Uexaster obscurus Perrier 1891
- Uexothyris
- Uexothyris convergens
- Uexothyris convergens Struve 1992
- Uexothyris ellagica
- Uexothyris ellagica Struve 1992
- Uexothyris oryza
- Uexothyris oryza cuneata
- Uexothyris oryza cuneata Struve 1992
- Uexothyris oryza oryza
- Uexothyris oryza robusta
- Uexothyris oryza robusta Struve 1992
- Uexothyris oryza Struve 1992
- Uexothyris pentagonalis
- Uexothyris pentagonalis Struve 1992
- Uexothyris Struve 1992
- Ufa deprivalis
- Ufa deprivalis Walker 1863
- Ufa lithosella
- Ufa lithosella (Ragonot 1887)
- Ufa lithosella Rag.
- Ufa lithosella Ragonot 1887
- Ufa luteella
- Ufa luteella Hulst 1900
- Ufa minualis
- Ufa minualis Walker 1863
- Ufa pyrrhochrellus
- Ufa pyrrhochrellus Ragonot 1888
- Ufa roseitinctella
- Ufa roseitinctella (Dyar 1912)
- Ufa roseitinctella Dyar
- Ufa roseitinctella Dyar 1912
- Ufa rubedinella
- Ufa rubedinella (Zeller 1848)
- Ufa rubedinella Zell.
- Ufa rubedinella Zeller 1848
- Ufa rufescentalis
- Ufa rufescentalis Walker 1863
- Ufa senta
- Ufa senta Heinrich 1956
- Ufa translucida
- Ufa translucida Walker 1863
- Ufa venezuelalis
- Ufa venezuelalis Walker 1863
- Ufa Walker 1863
- Ufeina Crumb 1956
- Ufeinae
- Ufeinae Crumb 1956
- Ufeini
- Ufena elimaeae
- Ufena elimaeae Timberlake 1927
- Ufens
- Ufens (Monortochaeta)
- Ufens (Monortochaeta) platensis De Santis 1957
- Ufens (Monortochaeta) platensis De Santis, 1957
- Ufens acuminatus
- Ufens acuminatus Lin
- Ufens acuminatus Lin 1993
- Ufens acuminatus Lin Naiquan 1993
- Ufens acuminatus Lin, 1993
- Ufens afrangiata
- Ufens afrangiata (Viggiani & Hayat 1974)
- Ufens afrangiata (Viggiani & Hayat)
- Ufens afrangiata (Viggiani & Hayat, 1974)
- Ufens alami
- Ufens alami Yousuf & Shafee
- Ufens alami Yousuf & Shafee 1987
- Ufens alami Yousuf & Shafee 1988
- Ufens alami Yousuf & Shafee, 1988
- Ufens albiscutellum
- Ufens albiscutellum (Khan & Shafee 1977)
- Ufens albiscutellum (Khan & Shafee)
- Ufens albiscutellum (Khan & Shafee, 1977)
- Ufens albitibiae
- Uffenbachia Heist. ex Fabr.
- Uffenbachia Heister ex Fabricius
- Uffenbachia Heister ex Fabricius 1763
- Uffenbachia Heister ex Fabricius, 1763
- Ufimia accelerans
- Ufimia accelerans Rodriguez & Kullmann 1999
- Ufimia alternans
- Ufimia alternans de Groot 1963
- Ufimia alternata
- Ufimia alternata tumida
- Ufimia alternata tumida Niermann 1975
- Ufimia arctica
- Ufimia arctica Fedorowski & Bamber 2001
- Ufimia aust rale
- Ufimia beyrichi
- Ufimia biforma
- Ufimia biforma Flugel 1991
- Ufimia carbonaria
- Ufimia carbonaria Stuckenberg 1896
- Ufimia clavatum
- Ufimia crassisepta
- Ufimia cuneiseptum
- Ufimia elongata
- Ufimia fomitchevi
- Ufimia fomitchevi Ilina 1984
- Ufimia formosum
- Ufimia formosum Schindewolf 1942
- Ufimia haydeni pancior
- Ufimia haydeni pancior Niermann 1975
- Ufimia hunzensis
- Ufimia hunzensis Flugel 1990
- Ufimia infracarbonicum
- Ufimia isophyllum
- Ufo koreanus Melika, Pujade-Villar & Choi 2007
- Ufo Melika & Pujade-Villar 2005
- Ufonicoelia
- Ufonicoelia archibalda
- Ufonicoelia archibalda Havlicek 1992
- Ufonicoelia Havlicek 1992
- Ufonicoelia torleyi
- Ufonicoelia torleyi (Havlicek 1956)
- Uga colliscutellum
- Uga colliscutellum (Girault 1922)
- Uga colliscutellum (Girault)
- Uga colliscutellum (Girault, 1922)
- Uga coriacea
- Uga coriacea Kerrich
- Uga coriacea Kerrich 1960
- Uga coriacea Kerrich, 1960
- Uga digitata
- Uga digitata Qian & He
- Uga digitata Qian & He 1992
- Uga digitata Qian & He, 1992
- Uga digitata Qian, Li & He 1992
- Uga Girault 1930
- Uga Girault 1933
- Uga Grlt.
- Uga hemicarinata
- Uga hemicarinata Qian & Li 1992
- Uga hemicarinata Qian & Li, 1992
- Uga hemicraniata Qian & Li
- Uga javanica
- Uga javanica Kerrich
- Uga javanica Kerrich 1960
- Uga javanica Kerrich, 1960
- Uga Kerrich
- Uga menoni
- Uga menoni Kerrich
- Uga menoni Kerrich 1960
- Uga menoni Kerrich, 1960
- Ugdulenaia Cantaluppi 1970
- Ugdulenia
- Ugdulenia Cantaluppi 1970
- Ugena alba
- Ugena alba Blanco
- Ugena Cav.
- Ugena Cavanilles
- Ugena Cavanilles 1801
- Ugena Cavanilles, 1801
- Ugena dichotoma
- Ugena dichotoma Cav.
- Ugena macrostachya
- Ugena macrostachya Cav.
- Ugena microphylla
- Ugena microphylla Cav.
- Ugena polymorpha
- Ugena polymorpha Cav.
- Ugena semihaftata Cav.
- Ugena semihastata
- Ugena semihastata Blanco
- Ugena semihastata Cav.
- ugera Sterrer 1991
- Ugerda chaon
- Ugeroceras
- Ugeroceras Sturgeon & Miller 1948
- ugesae Verduin 1988
- Ugia affinis
- Ugia affinis (Snellen 1895)
- Ugia albertii
- Ugia albertii Kobes 1983
- Ugia albertii Kobes 1989
- Ugia albilinea
- Ugia albilinea Br.
- Ugia albilinea Hampson 1926
- Ugia amaponda
- Ugia amaponda (Felder & Rogenhofer 1874)
- Ugia amaponda Felder 1874
- Ugia calescens
- Ugia calescens (Holland 1894)
- Ugia calescens Holland 1894
- Ugia cinerea
- Ugia cinerea (Holland 1894)
- Ugia cinerea Holland 1894
- Ugia decisa
- Ugia decisa Walker 1865
- Ugia disjungens
- Ugia disjungens Walker 1858
- Ugia duplicata
- Ugia duplicata Gaede 1940
- Ugia duplicilinea
- Ugia duplicilinea Hampson 1926
- Ugia egcarsia
- Ugia egcarsia (Bethune-Baker 1911)
- Ugia egcarsia Bethune-Baker 1911
- Ugia eugrapha
- Uglasiella Segonzac 1979
- Ugloderes
- Ugloderes Stys 2001
- Ugloderes uvarovi
- Ugloderes uvarovi (Stys 1970)
- Uglukodrilus
- Uglukodrilus Holt 1989
- Ugni angustifolia
- Ugni angustifolia Burret
- Ugni berteroi
- Ugni berteroi (Phil.) F. Philippi
- Ugni berteroi F.Phil.
- Ugni bridgesii
- Ugni bridgesii O.Berg
- Ugni candollei
- Ugni candollei (Barn.) Berg
- Ugni candollei (Barneoud) O. Berg
- Ugni candollei (Barneoud) O. Berg fo. litoralis Kausel
- Ugni candollei (Barneoud) O. Berg fo. monticola Kausel
- Ugni candollei f. litoralis
- Ugni candollei f. litoralis Kausel
- Ugni candollei f. monticola
- Ugni candollei f. monticola Kausel
- Ugni candollei litoralis
- Ugni candollei monticola
- Ugni candollei O.Berg
- Ugni disterigmoides
- Ugni disterigmoides Ant. Molina
- Ugni disterigmoides Ant.Molina
- Ugni friedrichsthalii
- Ugni friedrichsthalii brevipes
- Ugni friedrichsthalii friedrichsthalii
- Ugni friedrichsthalii longipes
- Ugni friedrichsthalii O. Berg
- Ugni friedrichsthalii O. Berg var. brevipes O. Berg
- Ugni friedrichsthalii O. Berg var. friedrichsthalii
- Ugoa Fennah 1945
- Ugoa glauca
- Ugoa glauca Fennah 1945
- Ugoa glauca Fennah, 1945
- Ugola
- Ugola Adans.
- Ugola Adans. 1763
- Ugola Adanson 1763
- Ugola baryana
- Ugola baryana (Tul.) Redhead & Seifert
- Ugola baryana (Tul.) Redhead & Seifert 2001
- Ugola physaroides
- Ugola physaroides (Fr.) Redhead & Seifert
- Ugola physaroides (Fr.) Redhead & Seifert 2001
- Ugola praticola
- Ugola praticola (Pidopl.) Stalpers
- Ugola praticola (Pidopl.) Stalpers 1984
- ugolinii Bellan-Santini & Ruffo 1991
- Ugona
- Ugona Adans.
- Ugooloceras
- Ugooloceras Evans 1996
- Ugooloceras oblatum
- Ugooloceras oblatum Evans 1996
- Ugra angustipennis
- Ugra parallela
- Ugra parallela Wlk.
- Ugra subrosealis
- Ugra Walker 1863
- Ugra Wlk.
- Ugrosaurus
- Ugrosaurus Cobabe & Fastovsky 1987
- Ugrosaurus olsoni
- Ugrosaurus olsoni Cobabe & Fastovsky 1987
- Ugurus
- Ugurus mirificus (Rauzer-Chernousova 1948)
- Ugurus Ozdikmen 2009
- Ugyopana
- Ugyopana cassia
- Ugyopana Fennah 1950
- Ugyopara
- Ugyopara cassia
- Ugyopara cassia Fennah 1950
- Ugyopara Fennah 1950
- Ugyopinae
- Ugyopinae Fennah 1979
- Ugyopini
- Ugyopini Fennah 1979
- Ugyops
- Ugyops (Guer. )
- Ugyops (P.) raouli (Muir, 1923) K
- Ugyops (Paracona ) Fennah 1965
- Ugyops (Paracona ) pelorus Fennah 1965
- Ugyops (Paracona ) raouli (Muir 1923)
- Ugyops (Paracona) pelorus Fennah, 1965 E
- Ugyops (U.) rhadamanthus Fennah, 1965 E
- Ugyops (Ugyops)
- Ugyops (Ugyops) caelatus (White, 1879) E
- Ugyops alecto
- Ugyops alecto Fennah 1969
- Ugyops almo
- Ugyops amboinensis
- Ugyops amboinensis Muir 1913
- Ugyops amboinensis Muir, 1913
- Ugyops andraemon
- Ugyops angusticauda
- Uhagonia Bolivar 1905
- Uhagonia depressa
- Uhagonia depressa Dirsh 1963
- Uhagonia depressa Dirsh, 1963
- Uhagonia sphenarioides
- Uhagonia sphenarioides Bolivar 1905
- Uhagonia sphenarioides Bolivar, I. 1905
- Uhagonia sphenarioides Bolivar, I., 1905
- Uhagonia wintreberti
- Uhagonia wintreberti Kevan 1968
- Uhagonia wintreberti Kevan, 1968
- Uhagonia wintreberti Kevan, D.K.M. 1968
- Uhagonia wintreberti Kevan, D.K.M., 1968
- Uhakiella
- Uhakiella aequigranosa
- Uhakiella aequtgranosa
- Uhakiella cicatriosa
- Uhakiella cicatriosa Sarv 1959
- Uhakiella coelodesma
- Uhakiella coelodesma Opik 1937
- Uhakiella curta
- Uhakiella curta Sidaravichene 1975
- Uhakiella curta Sidaraviciene
- Uhakiella diuturna
- Uhakiella diuturna Olempska 1994
- Uhakiella dorsoplicata
- Uhakiella dorsoplicata Wolfart 2002
- Uhakiella granulifera
- Uhakiella jaanussoni
- Uhdea bipinnatifida
- Uhdea bipinnatifida Kunth
- Uhdea C. S. Kunth, 1848
- Uhdea C.S. Kunth 1848
- Uhdea Kunth
- Uhdea pyramidalis
- Uhdea pyramidalis Hort.
- Uhehlia uniformia
- Uhehlia uniformia Pic 1939
- Uhehlia Weise 1906
- Uhelia
- Uhelia goetzei
- Uhelia goetzei Kuntzen 1912
- Uhelia pardalis
- Uhelia pardalis Kuntzen 1912
- Uhlerella
- Uhlerella Cassis 1984
- Uhlerella Cassis 1986
- uhleri
- Uhleria
- Uhleria araucariae
- Uhleria araucariae Cooke 1881
- Uhleria araucariae Cooke, 1881
- Uhleria camelliae
- Uhleria camelliae Comstock 1883
- Uhleria camelliae Comstock, 1883
- Uhleria Comstock 1883
- Uhleria Cooke 1881
- Uhleria Crawford 1914
- Uhleria fioriniae
- Uhleria fioriniae Comstock 1883
- Uhleria fioriniae Comstock, 1883
- Uhleria gigas
- Uhleria gigas Comstock 1883
- Uhleria gigas Comstock, 1883
- Uhleria mira
- Uhleria mira Crawford 1914
- Uhleria mura
- Uhleria mura Crawford 1914
- Uhleriella
- Uhleriella Ball
- Uhleriella Ball 1902
- Uhleriella marginata
- Uhleriella marginata Mats.
- Uhmannia Spaeth 1936
- Uhmannispa
- Uhmannispa Monros & Viana 1947
- Uhmnnia
- Uhmnnia Spaeth 1936
- Uichancoella Calilung 1975
- Uichancoella gabrieli
- Uichancoella gabrieli Calilung 1975
- Uighuria Kocak & Kemal 2007
- Uighuria marki
- Uighuria marki (Hreblay & Ronkay 2000)
- Uighuria pulla
- Uighuria pulla (Hreblay & Ronkay 2000)
- Uighuria satellitia
- Uighuria satellitia (Hreblay & Ronkay 2000)
- Uighuroniscidae Su Dezao 1985
- Uighuroniscus
- Uighuroniscus sinkiangensis
- Uighuroniscus sinkiangensis Su 1980
- Uighuroniscus sinkiangensis Su Dezao 1985
- Uighuroniscus Su 1980
- Uighuroniscus Su 1985
- Uighuroniscus Su Dezao 1985
- Uiguria
- Uiguria costata
- Uiguria costata Jiang & Lin 1995
- Uiguria Jiang & Lin 1995
- Uiguria Jiang & Lin in Jiang, Zhou, Lin et al. 1995
- uii Wakiya 1924
- Uinta
- Uinta Hulst 1888
- Uinta oreadella
- Uinta oreadella Hulst 1888
- Uintaceras
- Uintaceras grandis
- Uintaceras Holbrook & Lucas 1997
- Uintaceras radinskyi
- Uintaceras radinskyi Holbrook & Lucas 1997
- Uintacolotherium
- Uintacolotherium blayneyi
- Uintacolotherium blayneyi Cook 1926
- Uintacolotherium Cook 1926
- Uintacrimis
- Uintacrinida
- Uintacrinidae
- Uintacrinus
- Uintacrinus (Grinnel )
- Uintacrinus (Grinnel)
- Uintacrinus (Hemiaster)
- Uintacrinus anglicus
- Uintacrinus anglicus Rasmussen 1961
- Uintacrinus Grinnel 1876
- Uintacrinus Grinnell 1876
- Uintacrinus Meneghini 1876
- Uintacrinus socialis
- Uintacrinus socialis Grinn.
- Uintacrinus socialis Grinnell 1876
- Uintacrinus sp.
- Uipsa
- Uipsa Walker 1864
- uisila Jordan & Seale 1906
- Uitenia Noronha
- Uitenia stilaginea
- Uitenia stilaginea Noronha ex Miq.
- Uittienia
- Uittienia C. G. G. J. van Steenis
- Uittienia C. G. G. J. van Steenis, 1948
- Uittienia C.G.G.J. van Steenis 1948
- Uittienia modesta
- Uittienia modesta Steenis
- Uittienia Steenis
- Ujandinella Baranov 1977
- Ujandinella remissiformis
- Ujandinella remissiformis Baranov 1977
- Ujguricola Lehr 1970
- Ujguricola pergrisea
- Ujguricola pergrisea Lehr 1970
- Ujguricola pergrisea Lehr, 1970
- Ujgurokontikia
- Ujgurokontikia chavi
- Ujgurokontikia chavi Novojilov 1938
- Ujgurokontikia Novojilov 1958
- Ujhelyiana Strand 1922
- Ujna bicolorata
- Ujna bicolorata Ramachandra Rao 1995
- Ujna delicatula
- Ujna Distant 1907
- Ujna flavidipes
- Ujna flavidipes Distant 1917
- Ujna philippinensis
- Ujna philippinensis Baker 1915
- Ujnaflavidipes
- Ujnaflavidipes Dist.
- Ujukella alexandrae
- Ujukella alexandrae Andreev 1993
- Ujukella Andreev 1993
- Ujukella fastigata
- Ujukella fastigata (Rubel 1961)
- Ujukella geometrica
- Ujukella minima
- Ujukella minima Andreev 1993
- Ujukella? geometrica (Kutorga 1846)
- Ujukites
- Ujukites altaicus
- Ujukites altaicus Andreeva 1985
- Ujukites Andreeva 1985
- Ujukites Andreeva in Andreyeva 1985
- Ujukites tarlykensis
- Ujukites tarlykensis Andreeva 1985
- Ukachaka Kazantsev 2000
- Ukambocoris
- Ukambocoris Miller 1957
- Ukambocoris tiwae
- Ukambocoris tiwae Miller 1957
- Ukamenia
- Ukamenia mirana
- Ukamenia mirana Kuznetsov 1981
- Ukamenia Oku 1981
- Ukamenia sapporensis
- Ukamenia sapporensis (Matsumura 1931)
- Ukamenia sapporensis (Matsumura)
- Ukamenia sapporensis Matsumura 1931
- Ukayakos
- Ukayakos Argaman 2003
- Ukayakos obscurus
- Ukayakos obscurus (Kieffer 1906)
- Ukhaatherium nessovi
- Ukhaatherium nessovi Novacek, Rougier, Wible, McKenna, Dashzeveg & Horovitz 1997
- Ukhaatherium Novacek, Rougier, Wible, McKenna, Dashzeveg & Horovitz 1997
- Ukhtoceras
- Ukhtoceras angustiangulare
- Ukhtoceras angustiangulare Zhuravleva 1972
- Ukhtoceras asser
- Ukhtoceras asser (Nalivkin 1930)
- Ukhtoceras gregarium
- Ukhtoceras gregarium Zhuravleva 1972
- Ukhtoceras hidense
- Ukhtoceras hidense Niko 1998
- Ukhtoceras necopinatum
- Ukhtoceras necopinatum Zhuravleva 1972
- Ukhtoceras opinatum
- Ukhtoceras opinatum Zhuravleva 1972
- Ukhtoceras pignus
- Ukhtoceras pignus Zhuravleva 1972
- Ukhtoceras quietum
- Ukhtoceras quietum Zhuravleva 1972
- Ukhtoceras uchtense
- Ukhtoceras uchtense (Holzapfel 1899)
- Ukhtoceras Zhuravleva 1972
- Ukhtoceras? heckeri Zhuravleva 1972
- Ukhtoceratidae
- Ukhtoceratidae Zhuravleva 1972
- Ukko Friele 1893
- Ukko Friele in Norman 1893
- Ukko Norman 1893
- Ukoa Öpik 1932
- Ukoa ornata
- Ukoa ornata Opik 1932
- Ukraimtes Lyashenko 1969
- Ukraimtes spatiosus
- Ukraimtes spatiosus Lyashenko 1969
- Ukrainaspis
- Ukrainaspis Sansom 2009
- Ukraine host Lasius niger
- Ukraine host niger
- Ukrainella
- Ukrainella Gurevich 1972
- ukrainensis Cairns 2001
- Ukrainilithus
- Ukrainilithus fasciarius
- Ukrainilithus fasciarius Lulyeva 1972
- Ukrainilithus Lulyeva 1972
- Ukrainilithus? mutabilis Lulyeva 1972
- Ukrainites
- Ukrainites Lyashenko 1969
- Ukrainites spatiosus
- Ukrainities
- Ukrainities Lyashenko 1969
- Uktaspis (Prouktaspis)
- Uktaspis (Prouktaspis) insolens (Suvorova 1960)
- Uktaspis (Prouktaspis) insolens Suvorova
- Uktaspis (Prouktaspis) Khomentovsky & Repina 1965
- Uktaspis (Prouktaspis) ornata Khomentovsky & Repina 1965
- Uktaspis (U.) granulata Korobov 1963
- Uktaspis (U.) Korobov 1963
- Uktaspis (Uktaspis) granulata Korobov 1963
- Uktaspis granulata
- Uktaspis granulata KorobOV 1963
- Uktaspis insolens
- Uktaspis Korobov
- Uktaspis KOROBOV 1963
- Uktaspis ornata
- Uktaspis sp
- Uktenadactylus
- Uktenadactylus Rodrigues & Kellner 2008
- Uktenadactylus wadleighi
- Uktenadactylus wadleighi (Lee 1994)
- Ukukites Pokrovskaya 1961
- ula (de Laubenfels 1950)
- Ula (E.) malaisei
- Ula (Metaula)
- Ula (Metaula) hians
- Ula (Metaula) hians Sikkim
- Ula (Metaula) splendissima
- Ula (U.) bidens
- Ula (U.) fulva
- Ula (U.) subbidens Alexander 1958
- Ula (U.) unidens Alexander 1968
- Ula (Ula)
- Ula (Ula) auritarsis
- Ula (Ula) bidens
- Ula (Ula) bifilata
- Ula (Ula) bolitophila Loew 1869
- Ula (Ula) ciscuncta Starý 1997
- Ula (Ula) elegans
- Ula (Ula) flavidibasis
- Ula (Ula) fulva
- Ula (Ula) fungicola Nobuchi 1954
- Ula (Ula) fuscistigma
- Ula (Ula) Haliday 1833
- Ula (Ula) javanica
- Ula (Ula) kiushiuensis Alexander
- Ula (Ula) malaisei
- Ula (Ula) mindanica
- Ula (Ula) mixta
- Ula (Ula) mixta Stary 1983
- Ula (Ula) mollissima Haliday 1833
- Ulbospirifer
- Ulbospirifer altaicus
- Ulbospirifer altaicus Gretchishnikova 1965
- Ulbospirifer Grechishnikova 1965
- Ulbospirifer Gretchischnikova 1965
- Ulbospirifer Gretchishnikova 1965
- Ulbospirifer vulgatus
- Ulbospiriferidae
- Ulbospiriferidae Johnson & Carter 1994
- Ulbospiriferinae
- Ulbospiriferinae Johnson & Carter 1994
- Ulbrichia
- Ulbrichia beatensis
- Ulbrichia beatensis Urb.
- Ulbrichia beatensis Urb., 1924
- Ulbrichia Urb.
- Ulbrichia Urban 1924
- Ulbrichia Urban, 1924
- Ulca bolini
- Ulca bolini Myers 1934
- Ulca bolini Myers 1934 sec. Eschmeyer 2004
- Ulca bolini Myers, 1934
- Ulca Jordan & Evermann 1896
- Ulca Jordan & Evermann 1896 sec. Eschmeyer 1998
- Ulca Jordan & Evermann 1896 sec. Eschmeyer 2004
- Ulca Jordan & Evermann 1896 sec. Myers 1934
- Ulca Jordan and Evermann in Jordan, 1896
- Ulca marmorata
- Ulca marmorata (Bean )
- Ulca marmorata (Bean 1890)
- Ulca marmorata (Bean, 1890)
- Ulca mormorata
- Ulcerative disease rhabdovirus Ulcerative disease rhabdovirus ICTV
- Ulcigobius
- Ulcigobius (Drombus) maculipinnis Fowler 1918
- Ulcigobius Fowler 1918
- Ulcigobius maculipinnis
- Ulcina
- Ulcina Cramer 1896
- Ulcina Cramer in Jordan and Evermann, 1896
- Ulcina güntheri
- Ulcina güntheri (Bean 1885)
- Ulcina güntheri (Bean, 1885)
- Ulcina g�ntheri (Bean 1885)
- Ulcina olriki
- Ulcina olriki (Lütken 1876)
- Ulcina olriki (Lütken, 1876
- Uldanamia Barnard & Drummond 1978
- Uldanamia pillare
- Uldanamia pillare Barnard & Drummond
- Uldanamia pillare Barnard & Drummond 1978
- Uldanamia pillare Barnard & Drummond, 1978
- Uldanamia pillare J.L. Barnard & Drummond 1978
- Uldinia
- Uldinia ceratocarpa
- Uldinia ceratocarpa (W.Fitzg.) N.T.Burb.
- Uldinia ceratocarpa (W.Fitzg.) N.T.Burbidge
- Uldinia ceratocarpa × Trachymene cyanopetala
- Uldinia J. M. Black
- Uldinia J. M. Black, 1922
- Uldinia J.M. Black 1922
- Uldinia J.M.Black
- Uldinia mercurialis
- Uldinia mercurialis J.M.Black
- Uldzapora
- Uldzapora Gorjunova 1994
- Uldzapora Gorjunova in Goryuno 1994
- Uldzapora ninae
- Uldzapora ninae Gorjunova 1994
- Uldziathyris
- Uldziathyris Grunt 1977
- Uldziathyris tikhonovi
- Uldziathyris tikhonovi Grunt 1977
- Uldziathyris tsakhirinica
- Uldziathyris tsakhirinica Grunt 1991
- Uldzinia
- Ulea Houard, 1933
- Ulea J. Schröt. 1892
- Ulea J. Schröter 1892
- Ulea Müller Hal. 1897
- Ulea Müller Hal., 1897
- Ulea nitida
- Ulea nitida Thériot in Felippone, 1930
- Ulea palmicola
- Ulea palmicola C. Mull.
- Ulea palmicola Müll. Hal.
- Ulea paradoxa
- Ulea paradoxa J. Schröt.
- Ulea paradoxa J. Schröt. 1892
- Ulea paradoxa J. Schr�t. 1892
- Ulea Schroeter, 1892
- Ulea yesensis
- Ulea yesensis Bescherelle ex Iishiba 1929
- Ulea yesensis Bescherelle ex Iishiba, 1929
- Ulea-flos
- Ulea-flos C.B.Clarke ex H.Pfeiff.
- Ulea-flos euphorbiae
- Ulea-flos euphorbiae C.B.Clarke ex H.Pfeiff.
- Uleanthus
- Uleanthus erythrinoides
- Uleanthus erythrinoides Harms
- Uleanthus Harms
- Uleanthus Harms 1905
- Uleanthus Harms, 1905
- Ulearum
- Ulfa Dall & Bartsch 1904
- Ulhmannia Börner 1952
- Ulia Becker 1907
- Ulia poecilogastra
- Ulia poecilogastra Becker
- Ulia poecilogastra Becker 1907
- Ulia poecilogastra Becker, 1907
- Ulianinia
- Ulianinia contractilis
- Ulianinia contractilis (Meixner )
- Ulianinia contractilis (Meixner 1938) Karling 1963
- Ulianinia contractilis (Meixner, 1938) Karling 1963
- Ulianinia contractilis Meixner 1938
- Ulianinia Levinsen
- Ulianinia Levinsen 1879
- Ulianinia mollisima
- Ulianinia mollisima Levinsen 1879
- Ulianinia mollissima
- Ulianinia mollissima Levinsen
- Ulianinia mollissima Levinsen 1879
- Ulianinia mollissima Levinsen, 1879
- Ulianinia westbladi
- Ulianinia westbladi Karling 1963
- Ulianinia westbladi Karling, 1963
- Ulianinidae
- Ulianinidae Karling 1963
- Ulianiniidae
- Ulianiniidae Levinsen 1879
- Uliaria
- Uliaria Dumont 1920
- Uliaria Dumont 1921
- uljanini Sovinsky 1887
- uljanini v. Graff 1904
- uljinensis Kang & Sim 2007
- uljinensis Shim & Sim 2008
- Ulkenia A. Gaertn. 1977
- Ulkenia A. Gaertner 1977
- Ulkenia amoeboida
- Ulkenia amoeboida (Bahnweg & Sparrow) Gaertner 1977
- Ulkenia amoeboida (Bahnweg & Sparrow) Gaertner, 1977
- Ulkenia amoeboidea
- Ulkenia amoeboidea (Bahnweg & Sparrow) A. Gaertn.
- Ulkenia amoeboidea (Bahnweg & Sparrow) A. Gaertn. 1977
- Ulkenia Gaertner 1977
- Ulkenia Gaertner, 1977
- Ulkenia minuta
- Ulkenia minuta Raghuk.
- Ulkenia minuta Raghuk. 1977
- Ulkenia minuta S. Raghu Kumar 1977
- Ulkenia minuta S. Raghu Kumar, 1977
- Ulkenia profunda
- Ulkenia profunda A. Gaertn.
- Ulkenia profunda A. Gaertn. 1977
- Ulkenia profunda A. Gaertner, 1977
- Ulkenia radiata
- Ulkenia radiata A. Gaertn.
- Ulkenia radiata A. Gaertn. 1977
- Ulkenia radiata A. Gaertner, 1977
- Ulkenia sarkariana
- Ulkenia sarkariana A. Gaertn.
- Ulkenia sarkariana A. Gaertn. 1977
- Ulkenia sarkariana A. Gaertner, 1977
- Ulkenia visurgensis
- Ulkenia visurgensis (A. Ulken, 1965) A. Gaertner, 1977
- Ullaspis
- Ullaspis (Westergard)
- Ullaspis conifrona
- Ullaspis conifrona Westergard 1948
- Ullaspis conifrons
- Ullaspis conifrons Wgard
- Ullaspis granifer
- Ullaspis granifer Buchholz 1997
- Ullaspis WESTERGARD 1948
- [[Ullaspis [Westergard]]]
- Ullehmannia
- Ullehmannia afalcata
- Ullehmannia afalcata Schallreuter 1986
- Ullehmannia amabilis
- Ullehmannia amabilis (Neckaja 1960)
- Ullehmannia dagolia
- Ullehmannia dagolia Schallreuter 1995
- Ullehmannia postpleta
- Ullehmannia postpleta Schallreuter 1991
- Ullehmannia saarameisaiensis
- Ullehmannia saarameisaiensis (Neckaja 1973)
- Ullehmannia Schallreuter 1986
- Ullehmannia spicata
- Ullehmannia spicata Hansch 1994
- Ullerella
- Ullerella carbonica
- Ullerella carbonica Pribyl 1962
- Ullerella Henningsmoen 1950
- Ullerella holtedahli
- Ulmacea
- Ulmaceae
- Ulmaceae Mirb.
- Ulmaceae Mirb. fam.
- Ulmaceae Mirbel
- Ulmaceae spec. Mirbel
- Ulmaceaepites
- Ulmaceaepites B. Biswas 1962
- Ulmaceaepites B. Biswas, 1962
- Ulmacites
- Ulmacites R. Caspary ex H. Conwentz 1886
- Ulmacites R. Caspary ex H. Conwentz, 1886
- Ulmara
- Ulmara rotunda
- Ulmara rotunda (Dognin, 1916)
- Ulmara rotunda Dognin 1916
- Ulmara Schaus 1928
- Ulmara Schaus 1929
- Ulmaria
- Ulmaria angustifolia
- Ulmaria angustifolia Rehder
- Ulmaria arunca
- Ulmaria arunca (L.) Hill
- Ulmaria aruncus
- Ulmaria aruncus (L.) Hill
- Ulmaria aruncus Hill
- Ulmaria camtschatica
- Ulmaria camtschatica (Pall.) Matsum.
- Ulmaria camtschatica (Pall.) Y.Yabe & Yendo
- Ulna (Nitzsch) Ehrenb.
- ulna (Nitzsch) Ehrenberg 1832
- ulna (Nitzsch) Lange-Bertalot 1980
- Ulna Capuse 1973
- Ulna Capuse 1975
- Ulna mentalis
- Ulna mentalis (Cuvier 1833)
- Ulna mentalis (Cuvier, 1833)
- ulna Nitzsch 1827
- Ulnaria
- Ulnaria (Kützing) P. Compère in Jahn, R., J.P. Kociolek, A. Witkowski & P. Compère (eds.) 2001
- Ulnaria F.T. Kutzing 1844
- Ulnaria Kützing 1844
- Ulnaria ulna
- Uloabaetes leoninus LeC.
- Ulobaris
- Ulobaris crinipes
- Ulobaris crinipes Bates, 1870
- Ulobaris crinipes Hustache, A. 1938
- Ulobaris crinipes Hustache, A., 1938
- Ulobaris kuchenbeisseri
- Ulobaris kuchenbeisseri Hartmann 1899
- Ulobaris kuchenbeisseri Hartmann, 1899
- Ulobaris loricata
- Ulobaris loricata (Boheman 1836)
- Ulobaris loricata (Boheman, 1836)
- Ulobaris loricata Boheman, 1836
- Ulobaris loricata Reitter, E. 1895
- Ulobaris loricata Reitter, E., 1895
- Ulobaris Reitter 1895
- Ulobomopes
- Ulobomopes unicus
- Ulobomopes unicus Wunderlich 2004
- Ulobomopes Wunderlich 2004
- Uloborella
- Uloborella Caporiacco 1940
- Uloborella strandi
- Uloborella strandi Caporiacco 1940
- Uloborella strandi Caporiacco, 1940
- Uloboricus
- Uloboridae
- Uloboridae Pickard Cambridge 1871
- Uloboridae Pickard-Cambridge 1871
- Ulpia Scott 1955
- Ulpia venusta
- Ulpia venusta Scott 1955
- Ulpio
- Ulpio Gistl 1847
- [[Ulpio Gistl [1847]]]
- Ulpius
- Ulpius bigibbula
- Ulpius obscurus
- Ulpius Stål 1865
- ulreungum Kim 1983
- ulreyi Schmitt 1921
- Ulrica
- Ulrica melitta
- Ulrica melitta Bechyne & Springlova de Bechyne 1970
- Ulrica minuta
- Ulrica minuta (Jacoby )
- Ulrica Scherer 1962
- Ulrica teratoptera
- Ulrica teratoptera Bechyne & Springlova de Bechyne 1970
- Ulrichaspis
- Ulrichaspis cranidium
- Ulrichaspis para doxa
- Ulrichaspis para doxa Rasetti 1945
- Ulrichaspis RASETTI 1945
- Ulrichaster
- Ulrichaster biradialis
- Ulrichaster biradialis (Keble, R A & Withers 1934)
- Ulrichaster macrodentatus
- Ulrichaster macrodentatus Jell & Theron 1999
- Ulrichaster Spencer 1950
- Ulrichella
- Ulrichella Boucek 1936
- Ulrichella remisi
- Ulrichella remisi Boucek 1936
- Ulrichi
- ulrichi Mart�nez-Arbizu 2006
- Ulrichi Seidlitz G von 1893
- Ulrichia
- Ulskia
- Ulskia Logvinenko & Starobogatov 1968
- Ulskia Logvinenko & Starobogatov 1969
- ulskyii sars
- ulstrupae Healy 1996
- Ulthina luzonica
- Ulthina luzonica Simon 1893
- Ulthina Simon 1893
- Ulticona
- Ulticona aspera
- Ulticona aspera (Ruiz & Pav.) Raf.
- Ulticona aspera Raf.
- Ulticona aspera RuÃz & Pav.
- Ulticona biflora
- Ulticona biflora (Ruiz & Pav.) Raf.
- Ulticona biflora Raf.
- Ulticona Raf.
- Ulticona Rafinesque 1838
- Ulticona Rafinesque, 1838
- Ulticona viridiflora
- Ulticona viridiflora Raf.
- ultima (Annandale 1910)
- ultima (Bellan-Santini 1972b)
- ultima (Brehm 1960)
- ultima (Hertz 1927)
- ultima (Kofoid 1906) Kofoid et Skogsberg 1928
- ultima Annandale 1910
- ultima Brehm 1960
- ultima Hertz 1927
- ultima Murphy 1949
- ultima Payne & amp; Allen 1991
- ultima Smith 1885
- Ultimachelium barnardi
- Ultimachelium barnardi (Alonso de Pina 1993)
- Ulua aurochs
- Ulua aurochs (Ogilby 1915)
- Ulua aurochs (Ogilby, 1915)
- Ulua Jordan & Snyder 1908
- Ulua Jordan & Snyder 1908 sec. Eschmeyer 1998
- Ulua Jordan & Snyder 1908 sec. Eschmeyer 2004
- Ulua Jordan and Snyder, 1908
- ulua Lewis A.G. 1964
- Ulua mandibularis
- Ulua mandibularis (Macleay 1882)
- Ulua mandibularis (Macleay, 1882)
- Ulua mandibulatis
- Ulua mandibulatis (Macleay 1882)
- Ulua mandibulatis (Macleay, 1882)
- Ulua mentalis
- Ulua mentalis (Cuvier 1833)
- Ulua mentalis (Cuvier in Cuvier and Valenciennes, 1833)
- Ulua mentalis (Cuvier, 1833)
- Ulua pertusa Kjellman
- Ulua richardsoni
- Ulua richardsoni Jordan & Snyder 1908
- Ulua richardsoni Jordan & Snyder 1908 sec. Eschmeyer 2004
- Ulubra
- Ulubra brachialis
- Ulubra brachialis (Stal 1862)
- Ulubra rufula
- Ulubra rufula (Lallemand 1966)
- Ulubra Stål 1860
- Ulubra Stål 1866
- ulva (Hicks 1982)
- Ulva acanthophora
- Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & J.R. Waaland
- Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & J.R. Waaland
- Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & J.R. Waaland, 2003
- Ulva acanthophora (K�tzing) Hayden, Blomster, Maggs, P.C. Silva, Stanhope & J.R. Waaland
- Ulva Adans.
- Ulva Adanson 1763
- Ulva Adanson, 1763
- Ulva adspersa
- Ulva adspersa Mertens ex Roth
- Ulva adspersa Roth 1806
- Ulva aetherea
- Ulva ahlneriana
- Ulva amamiensis
- Ulva amamiensis Tanaka
- Ulva amamiensis Tanaka 1956
- Ulva anandii
- Ulva anandii Amjad & Shameel
- Ulva anandii Amjad & Shameel 1993
- Ulva anandii Amjad & Shameel, 1993
- Ulva angusta
- Ulva angusta Setch. & N. L. Gardner
- Ulva angusta Setchell & N. L. Gardner
- Ulva angusta Setchell & N.L. Gardner
- Ulva arasaki
- Ulva arasakii
- Ulva arasakii Chihara
- Ulva arasakii Chihara 1969
- Ulwellia Anderson 1939
- Ulwellia clavata
- Ulwellia menevensis
- Ulwellia minuta
- Ulwellia minuta Peck 1951
- Ulwellia p. poxwellensis Anderson 1940
- Ulwellia papulata
- Ulwellia papulata Anderson 1940
- Ulwellia pdulsgrovensis
- Ulwembua
- Ulwembua antsiranana
- Ulwembua antsiranana Griswold 1997
- Ulwembua antsiranana Griswold, 1997
- Ulwembua antsiranana Griswold, 2001
- Ulwembua denticulata
- Ulwembua denticulata Griswold 1987
- Ulwembua denticulata Griswold, 1987
- Ulwembua denticulata Griswold, 2001
- Ulwembua Griswold 1987
- Ulwembua nigra
- Ulwembua nigra Griswold 2001
- Ulwembua nigra Griswold, 2001
- Ulwembua outeniqua
- Ulwembua outeniqua Griswold 1987
- Ulwembua outeniqua Griswold, 1987
- Ulwembua outeniqua Griswold, 2001
- Ulwembua pulchra
- Ulwembua pulchra Griswold 1987
- Ulwembua pulchra Griswold, 1987
- Ulyana excellens
- Ulyana excellens Gratshev 1999
- Ulyana nobilis
- Ulyana nobilis Zherichin 1993
- Ulyana Zherichin 1993
- Ulyana Zherichin in Crom Dmitri, Zherich, Lebed, Ponomaren, Rasnits & Sukatshe 1993
- Ulyana Zherikhin 1993
- Ulyana Zherikhin in Gromov et al 1993
- Ulyanidae
- Ulyanidae Zherichin 1993
- Ulyanidae Zherikhin, 1993
- Ulyanisca
- Ulyanisca dentipes
- Ulyanisca dentipes Gratshev 1999
- Ulyanisca Gratshev 1999
- Ulysses
- Ulysses Mulsant 1875
- ulyssiponensis Gmelin 1791
- Uma . notata cowlesi
- Uma Baird
- Uma Baird 1858
- Uma Baird, 1859
- Uma exsul
- Uma exsul paraphygas
- Uma exsul paraphygos
- Uma exsul SCHMIDT & BOGERT 1947
- Uma exsul Schmidt and Bogert, 1947
- Uma inornata
- Uma inornata COPE 1895
- Uma inornata Cope, 1895
- Uma inornata notata
- Uma inornta
- Uma n. cowlesi
- Uma n. inornata
- Uma n. notata
- Uma n. rufopunctata
- Uma notata
- Uma notata Baird
- Uma notata BAIRD 1858
- Uma notata Baird, 1859
- Uma notata cowlesi
- Uma notata cowlesi HEIFETZ 1941
- Uma notata cowlesi HEIFETZ 1941 (fide NORRIS 1958)
- Uma notata cowlesii
- Uma notata inornata
- Uma notata inornata COPE 1895
- Uma notata inornata COPE 1895: 939
- Umbadrilus saamicus
- Umbadrilus saamicus Timm & Popchenko 1978
- Umbadrilus saamicus Timm 1978
- Umbadrilus Tim 1978
- Umbadrilus Timm
- Umbadrilus Timm 1978
- Umbadrilus Timm in Timm & Popchenko 1978
- Umbadrilus Timm. 1978
- Umbaja
- Umbaja Distant
- Umbala
- Umbala Blackwelder 1952
- Umbaspis
- Umbaspis MacG.
- Umbaspis MacGillivray 1921
- Umbaspis regularis
- Umbaspis regularis (Newstead 1911)
- Umbaspis regularis (Newstead, 1911)
- Umbaspis regularis brasiliensis
- Umbaspis regularis brasiliensis Fonseca 1969
- Umbaspis regularis brasiliensis Fonseca, 1969
- Umbaspis regularis brasiliensis Pinto da Fonseca 1969
- Umbaspis regularis MacGillivray 1921
- Umbaspis regularis MacGillivray, 1921
- Umbaspis regularis Newstead
- Umbaspis spatulata
- Umbaspis spatulata (Hall 1929)
- Umbaspis spatulata (Hall, 1929)
- Umbaspis spatulata Balachowsky 1954
- Umenocoleidae
- Umenocoleidae Chen & T'an 1973
- Umenocoleidae Chen & Tian 1973
- Umenocoleoidea
- Umenocoleoidea Chen & Tian 1973
- Umenocoleus
- Umenocoleus Chen & T'an 1973
- Umenocoleus nervosus
- Umenocoleus nervosus Zhang 1997
- Umenocoleus sinuatus
- Umenocoleus sinuatus Chen & T'an 1973
- Umenocolus sinuatus
- Umenocolus sinuatus Chen & Tan
- Umerata
- Umerata Alekseev 1994
- Umerata mirabilis
- Umerata mirabilis Alekseev 1994
- umeri Konno 1976
- Umerophiura
- Umerophiura Boczarowski 2001
- Umerophiura opiparia
- Umerophiura opiparia Boczarowski 2001
- Umerophiura umera
- Umerophiura umera Boczarowski 2001
- Umerosoma
- Umerosoma multispina
- Umerosoma multispina Wunderlich 2004
- Umerosoma Wunderlich 2004
- umerus (B�ttger-Schnack & Boxshall 1990)
- Umfila cornuta
- Umfila cornuta Keys.
- Umfila cornuta Keyserling, 1891
- Umfila granulata
- Umfila granulata Keyserling, 1886
- Umfila granulata Levi & Levi, 1962
- Umfila Keyserling 1886
- Umfila Lenz 1886
- Umfilianus
- Umfilianus Distant 1915
- Umfilianus gerstaeckeri
- Umfilianus gerstaeckeri Metcalf 1955
- Umfilianus hobohmi
- Umfilianus hobohmi Capener
- Umfilianus mossopi
- Umfilianus mossopi C.
- Umfolozia
- Umfolozia longula
- Umfolozia longula Andreson 1981
- Umfolozia Savage 1971
- Umfolozia sinuosa
- Umfolozia sinuosa Savage 1971
- umfula Ewer 1948
- Umgababa Leston 1953
- Umgazaniceras
- Umgazaniceras Klinger & Kennedy 1979
- Umgazaniceras thieuloyi
- Umgazaniceras thieuloyi Klinger & Kennedy 1979
- umgazi Smith 1949
- Umgenia
- Umgenia formidulosa
- Umgenia formidulosa Peringuey 1898
- Umgenia PÉRINGUEY 1896
- Umgenia Péringuey 1898
- umgenica Proches 2002
- Umhilicosphaera jafari Muller 1974
- umhlangae Smith 1949
- Umiaites Spath 1930
- Umiaspora
- Umiaspora bosei
- Umiaspora H. P. Singh, S. K. Srivastava et S. K. Roy, 1964
- Umiaspora H.P. Singh, S.K. Srivastava & S.K. Roy 1964
- umiatensis Wilson M.S. 1958
- Umiates
- Umibenowotome
- Umibenowotome Ito, 1956
- Umicrogiton
- Umicrogiton d'Orchymont 1919
- Umicrogiton insularis
- Umicrogiton insularis Orchymont 1919
- Umicrogiton Orchymont 1919
- Umidena
- Umidena bilinea
- Umidena bilinea Medler 1992
- Umidena bilinea Medler, 1992
- Umidena Medler 1992
- umigamecolus Ogawa, Matasuzaki & Misaki 1997
- Umingmakstrongylus
- Umingmakstrongylus Hoberg, Polley, Gunn & Nishi 1995
- Umingmakstrongylus pallikuukensis
- Umingmakstrongylus pallikuukensis Hoberg, Polley, Gunn & Nishi 1995
- Umiornis
- Umiornis maraghanus
- Umiornis maraghanus Mecquenem 1925
- Umiornis Mecquenem 1925
- umitakae Taki 1961
- Umjaba Distant 1904
- Umjada alluaudi
- Umkomaasia depressa
- Umkomaasia depressa Zeuner 1961
- Umkomaasia Zeuner 1961
- Umkomasia
- Umkomasia H. H. Thomas, 1931
- Umkomasia H.H. Thomas 1931
- Umkomasiaceae
- Umlima
- Umlima Cameron 1902
- Umlima penetralis
- Umlima penetralis Cameron 1902
- Umlina flexilis
- Umlocyathella repinae
- Umlocyathella repinae Zhuravleva
- Umma cincta
- Umma cincta (Hagen in Selys 1853)
- Umma cincta (Hagen in Selys, 1853)
- Umma cincta Hagen in Selys 1853
- Umma declivia
- Umma declivia Foerster 1906
- Umma declivia Foerster, 1906
- Umma declivium
- Umma declivium Foerster 1906
- Umma declivium Foerster, 1906
- Umma declivium Förster 1906
- Umma dintincta
- Umma distincta
- Umma distincta Longfield 1933
- Umma distincta Longfield, 1933
- Umma electa
- Umma electa Longfield 1933
- Umma electa Longfield, 1933
- Umma femina
- Umma femina Longfield 1945
- Umma femina Longfield 1947
- Umma femina Longfield, 1947
- Umma fumosa
- Umma fuscomarginis
- Umma fuscomarginis Sjöstedt 1899
- Umma fuscomarginis Sjöstedt, 1899
- Umma fuscomarginis Sj÷stedt, 1899
- Umma fuscomarginis Sj�stedt 1899
- Umma infumosa
- Umncumbata nyikae
- Umncumbata nyikae Kiriakoff 1975
- Umoonasaurus B. Kear et al. 2006
- Umoonasaurus demoscyllus
- Umoonasaurus demoscyllus Kear, Schroeder & Lee 2006
- Umoonasaurus Kear, Schroeder & Lee 2006
- Umoonasaurus Kear, Schroeder & Lee, 2006
- Umoricoleus
- Umoricoleus Kukalova 1969
- Umoricoleus perplex
- Umoricoleus perplex Kukalova 1969
- Umpquaia
- Umpquaia flangella
- Umpquaia flangella Vokes 1939
- Umpquaia oregonensis
- Umpquaia oregonensis Turner 1938
- Umpquaia Turner 1938
- Umpria
- Umpria Zhdanko 1994
- Umpria) section Zhdanko
- Umsema mucronata
- Umsema mucronata Raf.
- Umsema obtusifolia
- Umsema obtusifolia Raf.
- Umsema Raf.
- Umsema Rafinesque 1808
- Umsema Rafinesque, 1808
- Umsinenoceras
- Umsinenoceras cardielense
- Umsinenoceras cardielense Medina & Riccardi 2005
- Umsinenoceras compressum
- Umsinenoceras compressum Medina & Riccardi 2006
- Umsinenoceras Kennedy Wright & Klinger 1979
- Umsinenoceras Kennedy, Wright & Klinger 1979
- Umsinenoceras linguatuberculatum
- Umsinenoceras linguatuberculatum Kennedy, Wright & Klinger 1979
- Umslatus
- Umslatus agilis
- Umslatus agilis Peringuey 1899
- Umslatus agilis Péringuey LA 1899
- Umslatus echinatus
- Umslatus echinatus Solier AJJ 1848
- Umslatus Péringuey 1899
- Umslatus Péringuey LA 1899
- Umslatus tenuipes
- Umslatus tenuipes Ardoin 1963
- Umslatus tenuipes Ardoin P 1963
- Umslopogas
- Umslopogas Kirkaldy 1902
- Umtaliella Lawrence 1934
- Umtaliella rhodesiensis
- Umtaliella rhodesiensis Lawrence 1934
- Umtalius
- Umtalius Péringuey 1926
- Umtata
- Umtata musicus
- Umtata musicus Péringuey 1916
- Umtata musicus Péringuey, 1916
- Umtata musicus P�ringuey 1916
- Umtata Per.
- Umtata Péringuey 1916
- Umtata Peringuey 1918
- Umtiza
- Umtiza listerana
- Umtiza listerana Sim
- Umtiza listeriana
- Umtiza listeriana Sim
- Umtiza listeriana T. Sim
- Umtiza Sim
- Umtiza T. R. Sim
- Umtiza T. R. Sim, 1907
- Umtiza T.R. Sim 1907
- Umuara Brescovit 1996
- Umuara Brescovit 1997
- Umuara fasciata
- Umuara fasciata (Blackwall 1862)
- Umuara fasciata (Blackwall, 1862)
- Umuara junin
- Umuara junin Brescovit 1996
- Umuara junin Brescovit 1997
- Umuara junin Brescovit, 1997
- Umuara juquia
- Umuara juquia Brescovit 1996
- Umuara juquia Brescovit 1997
- Umuara juquia Brescovit, 1997
- Umuara pydanieli
- Umuara pydanieli Brescovit 1996
- Umuara pydanieli Brescovit 1997
- Umuara pydanieli Brescovit, 1997
- Umulina
- Umulina Grauber 1884
- Umushamyces
- Umushamyces Etayo 2008
- Umwani anymphos
- Umwani anymphos Griswold 2001
- Umwani anymphos Griswold, 2001
- Umwani artigamos
- Umwani artigamos Griswold 2001
- Umwani artigamos Griswold, 2001
- Umwani Griswold 2001
- Umwinsia
- Umwinsia cavernosa
- Umwinsia cavernosa Hodgson 1968
- Umwinsia cavernosa Hodgson, 1968
- Umwinsia Hodgson 1968
- Umwinsia nitidula
- Umwinsia nitidula (De Lotto 1958)
- Umwinsia nitidula (De Lotto, 1958)
- Umwinsia nitidulus
- Umwinsia nitidulus (De Lotto )
- Umwinsia nitidulus Hodgson 1968
- Umwinsia nitidulus Hodgson, 1968
- Umzila capeneri
- Umzila capeneri Marshall 1953
- Umzila Marshall
- Umzila Marshall 1908
- Umzila swynnertoni
- Umzila swynnertoni Marshall 1908
- Umzila swynnertoni Marshall, G.A.K. 1908
- Umzila swynnertoni Marshall, G.A.K., 1908
- Una ? purpurea
- Una a. aalge
- Una a. californica
- Una aalge
- una Armonies & Hellwig 1987
- Una de Nicéville 1890
- Una I. lomvia
- Una lomvia
- Una Niceville 1890
- Una philippensis
- Una philippensis Schroder & Treadaway 1986
- Una philippinensis
- Una philippinensis Schroder & Treadaway 1986
- Una pontis rovorea
- Una purpurea
- Una rantaizana
- Una rantaizana Wileman
- Una section
- una Thistle 1980
- Una unipunctata
- Una unipunctata Toxopeus 1932
- Una usta
- Una usta Distant 1886
- Una usta philippinensis
- Una usta philippinensis Schroder & Treadaway 1986
- Una usta Toxopeus 1932
- Una usta usta
- Una virus
- Una virus ICTV
- Unbonium
- Unbonium giganteum
- Unbraculum
- Unbraculum pictum
- Unbraculum pictum Adams
- Unbraculum umbraculum
- Unbraculum umbraculum (Lightfoot)
- Unbranched filaments and green sea hair algae
- unca Bowerbank 1872
- Unca clarivittata
- Unca novogonia
- Unca novogonia Berio 1955
- Unca Oken 1815
- Unca olivana
- Unca olivana Lucas 1959
- Uncaculeus
- Uncaculeus Stoltzfus 1977
- Uncaculeus Stoltzfus, 1977
- Uncadina
- Uncadina Dzik 2006
- Uncadina unca
- Uncadina unca (Bischoff 1956)
- Uncanacylus amelias
- Uncanacylus amelias Pilsbry 1920
- Uncanacylus calverti
- Uncancyclus
- Uncancylus
- Uncancylus concentricus
- Uncancylus leucapis
- Uncancylus Pilsbry 1914
- Uncancylus reclinis Pils.
- Uncancylus ticagus
- Uncanodes excisa
- Uncanylus
- Uncanylus moricandi
- uncapedis Cookson 1991
- Uncaria
- Unda
- Unda angulata
- Unda angulata Ponomarenko 1977
- Unda chonggezhuangensis
- Unda chonggezhuangensis Wang 1998
- Unda cursoria
- Unda cursoria Ponomarenko 1977
- unda Kelly 2007
- Unda maris
- Unda maris Schaeffer 1926
- Unda microplata
- Unda microplata Ponomarenko 1977
- Unda pachycephala
- Unda pachycephala Ponomarenko 1989
- Unda Ponomarenko 1977
- Unda Schaeffer 1926
- Unda schaefferi
- Unda schaefferi Sawyer 1975
- Undabracon
- Undabracon cariniventris
- Undabracon cariniventris Wang, Chen & He 2003
- Undabracon jucundus
- Undabracon jucundus (Enderlein 1920)
- Undabracon nigrithorax
- Undabracon nigrithorax Quicke 1986
- Undabracon Quicke 1986
- Undabracon sinuatus
- Undabracon sinuatus (Baltazar 1963)
- Undacolus
- Unechis
- Unechis boschmai
- Unechis boschmai Cogger 1983
- Unechis boschmai COGGER 1983: 238
- Unechis boschmai MENGDEN 1983
- Unechis brevicaudus
- Unechis brevicaudus COGGER 1975
- Unechis carpentariae
- Unechis carpentariae (Mackleay )
- Unechis carpentariae carpentariae
- Unechis carpentariae WORRELL 1961
- Unechis carpentariae WORRELL 1961: 25 (non Unechis carpentariae MACLEAY1887)
- Unechis dwyeri
- Unechis dwyeri COGGER 1983
- Unechis flagellum
- Unechis flagellum COGGER 1975
- Unechis gouldii
- Unechis gouldii COGGER 1975
- Unechis gouldii SHINE 1979
- Unechis gouldii SHINE 1979 (fide COGGER 1983)
- Unechis monachus
- Unechis monachus COGGER 1975
- Unechis nigriceps
- Unechis nigriceps Cogger 1983
- Unechis nigriceps COGGER 1983: 238
- Unechis nigriceps MENGDEN 1983
- Unechis nigrostriatus
- Unechis nigrostriatus COGGER 1975
- Unechis spectabilis
- Ungalia
- Ungalia (Lionotus)
- Ungalia (Lionotus) maculata
- Ungalia (Lionotus) maculata GUNDLACH 1864
- Ungalia (Lionotus) maculata var. semicincta
- Ungalia brasiliensis
- Ungalia brasiliensis ANDERSSON 1901
- Ungalia bucculenta
- Ungalia cana
- Ungalia cana COPE 1868
- Ungalia cana COPE 1868:129
- Ungalia conjuncta
- Ungalia conjuncta BOULENGER 1893
- Ungalia conjuncta BOULENGER 1893: 113
- Ungalia dipsadina
- Ungalia Gray 1842
- Ungalia hoetiana
- Ungalia hoetiana Cope
- Ungalia maculata
- Ungalia maculata Bibr.
- Ungalia maculata BOULENGER 1893
- Ungalia maculata BOULENGER 1893: 112
- Ungalia maculata Gray
- Ungalia maculata semicincta
- Ungalia maculata var. semicincta
- Ungalia maculata var. semicincta Grundlach & Peters, 1864
- Ungalia maculata var. semicincta GUNDLACH and PETERS in PETERS 1864: 388
- Ungalia melanura
- Ungalia melanura BOULENGER 1893
- Uniamniculus
- Uniamniculus Murav'eva 1975
- Uniandra
- Uniandra ascia Hanley 1856
- Uniandra contradens
- Uniandra contradens Brandt 1974
- Uniandra contradens contradens
- Uniandra contradens Lea 1838
- Uniandra contradens rusticoides
- Uniandra contradens rusticoides Brandt 1974
- Uniandra contradens tumidula
- Uniandra contradens tumidula Lea
- Uniandra crossei Deshayes & Jullien 1874
- Uniandra dautzenbergi Morelet 18890
- Uniandra Haas 1912
- Uniandra hageni Strubell 1897
- Uniandra rusticus Lea 1856
- Uniandra semmelincki
- Uniandra subcircularis
- Uniandra subcircularis Brandt 1974
- Uniandra verbeeki Martens 1897
- uniangulatus Cragin 1883
- Uniantennata
- Uniantennata Bousfield 1995
- Uniantennatus
- Uniantennatus caudimaculatus
- Uniantennatus caudimaculatus (non Rüppell, 1838)
- Uniantennatus caudimaculatus (non R�ppell 1838)
- Uniantennatus horridus
- Unjaella K. B. Korde, 1951
- Unjaella K.B. Korde 1951
- Unjala
- Unjala bifida
- Unjala bifida Reinw. ex Boerl.
- Unjala bifida Reinw. ex Miq.
- Unjala bipinnata
- Unjala bipinnata Reinw. ex Blume
- Unjala Blume
- Unjala decomposita
- Unjala decomposita Reinw. ex Blume
- Unjala longifolia
- Unjala longifolia Reinw. ex Blume
- Unjala longifolia Reinw. ex Miq.
- Unjala rheedei
- Unjala rheedei Reinw. ex Blume
- Unjala rheedii
- Unjala rheedii Reinw. ex Blume
- Unjala rheedii Reinw. ex Miq.
- Unjala rugosa Reinw. ex Miq.
- Unjala serrata
- Unjala serrata (Miq.) Reinw. ex de Vriese
- Unjala serrata Reinw. ex de Vriese
- Unjala serrata Reinw. ex Miq.
- Unjapyx
- Unjapyx clayae
- Unjapyx clayae Pages 1978
- Unjapyx clayi
- Unjapyx clayi Pagés 1978
- Unka
- Unka boreena
- Unka boreena Otte & Alexander 1983
- Unka boreena Otte & Alexander, 1983
- Unka boreena Otte, D. & R.D. Alexander 1983
- Unka boreena Otte, D. & R.D. Alexander, 1983
- Unka Otte & Alexander 1983
- Unkana
- Unkana ambasa
- Unkana ambasa (Moore 1857)
- Unkana ambasa (Moore, l858)
- Unkana ambasa ambasa Moore
- Unkana ambasa batara
- Unkana ambasa Evans 1940
- Unkana ambasa mindanaensis
- Unkana ambasa mindanaensis Fruhstorfer 1911
- Unkana ambasa Moore 1857
- Unkana anitta
- Unkana anitta Plötz 1882
- Unkana anitta Pl�tz 1882
- Unkana arisana
- Unkana arisana Matsumura 1935
- Unkana arisana Matsumura, 1935
- Unkana attina
- Unkana attina (Hewitson, 1868)
- Unkana attina Hewitson 1866
- Unkana batara
- Unkana batara Distant 1886
- Unkana batara Distant, 1886
- Unnabeyrichia Schallreuter 1995
- Unnabeyrichia unna
- Unnabeyrichia unna Schallreuter 1995
- Unnamed
- Unnamed genus sp. mad-01
- Unnamed genus undet
- Unnamed genus-02 sp. png-01
- Unnamed lineage of buprestids
- Unnamed monotypic taxon
- Unnamed suborder
- Unnamedanthocoridae
- Unnata
- Unnata Distant 1906
- Unnata intracta
- Unnata intracta (Walker )
- Unnata intracta (Walker 1858)
- Unnata intracta (Walker)
- Unnata intracta (Walker, 1858)
- Unniella
- Unniella multivirga
- Unniella multivirga Saether
- Unniella multivirga Saether 1982
- Unniella multivirga Saether, 1982
- Unniella Saether 1982
- Unniella Sæther 1982
- Unnithanaxine
- Unnithanaxine Price 1962
- Unobranchus abyssalis
- Unobranchus abyssalis Hartman 1965
- Unobranchus abyssalis Hartman, 1965
- Unobranchus Hartman 1965
- unocellatus Miki, Kanamaru & Amaoka 1987
- Unocerus
- Unocerus Billberg 1820
- Unochitina
- Unochitina urna
- Unocryptorhynchus
- Unocryptorhynchus Ramamurthy & Cox 1997
- Unocryptorhynchus zingiberae
- Unocryptorhynchus zingiberae Ramamurthy & Cox 1997
- Unoculubranchiobdella
- Unoculubranchiobdella expansa
- Unoculubranchiobdella expansa Solano Lobo Peralta, Rodrigues Matos & Maues Serra-Freire 1998
- Unoculubranchiobdella Peralta, Matos & Serra-Freire 1998
- Unoculubranchiobdella Solano Lobo Peralta et al 1998
- Unoculubranchiobdella Solano Lobo Peralta, Rodrigues Matos & Maues Serra-Freire 1998
- unoculus Kudenov 1985
- Unodentina
- Unodentina Malz 1958
- Unoka
- Unoka dramatica
- Unoka dramatica Hamilton 2002
- Unoka gillettei
- Unoka gillettei Metc.
- Unoka gillettei Metcalf 1955
- Unoka Lawson 1928
- Unplaced angulata
- Unplaced anura
- Unplaced ascophora
- Unplaced boholiensis
- Unplaced ctenostomates
- Unplaced flabellum
- Unplaced Fossils
- Unplaced fragilis
- unplaced genera
- [[unplaced genera {61. 0}]]
- Unplaced granulosa
- Unplaced morini
- Unplaced nannoliths
- Unplaced oligochaetes
- Unplaced panagrolaimid genera
- Unplaced parvula
- Unplaced powisii
- Unplaced prymnesiophytes
- Unplaced tricarinata
- Unplacedspecies
- Unpublished name
- Unquillosaurus
- Unquillosaurus ceibali
- Unquillosaurus ceibali Powell 1979
- Unquillosaurus ceibalii
- Unquillosaurus ceibalii Powell 1979
- Unquillosaurus Powell 1979
- Unsinulus maledictus
- Unsinulus maledictus altifrons
- Unsinulus maledictus altifrons Havlcek 1961
- Unsinulus nalivkini
- Unsinulus pila
- Unspecified
- Unspecified coleolids
- Unspecified vinsoni
- Unssigned
- Unssigned Aenictopechinids
- Unsuccessful attempt elodes
- Unsuccessful attempt on Stagnicola elodes
- Untamo apicalis
- Untamo apicalis Kirby 1889
- Untamo apicalis Kirby, 1889
- Untamo Kirby 1889
- Untergrundameise
- Untermannerix
- Untermannerix copiosus
- Untermannerix copiosus Rich 1981
- Untermannerix Rich 1981
- Untoima
- Untomia
- Untomia acicularis
- Untomia acicularis Meyrick 1918
- Untomia albistrigella
- Untomia albistrigella (Chambers 1872)
- Untomia albistrigella Chambers 1872
- Untomia alticolens
- Untomia alticolens Walsingham 1911
- Untomia Busck 1906
- Untomia formularis
- Untomia formularis Meyrick 1929
- Untomia juventella
- Untomia latistriga
- Untomia latistriga Walsingham 1911
- Untomia melanobathra
- Untomia melanobathra Meyrick 1918
- Untomia rotundata
- Untomia rotundata Walsingham 1911
- Untomia untomiella
- Unuchinia asaphes
- Unuchinia diaphanes
- Unuchinia diaphanes Gunnell 1988
- Unuchinia dysmathes
- Unuchinia Simpson 1937
- Unuchiniinae
- Unuchiniinae van Valen & McKenna in van Valen 1967
- Unuma
- Unuma (Spinunuma)
- Unuma (Spinunuma) echinatus Ichikawa & Yao 1976
- Unuma (Spinunuma) Ichikawa & Yao 1976
- Unuma (Unuma) typicus Ichikawa & Yao 1976
- Unuma echinatus
- Unuma gorda
- Unuma gordus
- Unuma Ichikawa & Yao 1976
- Unuma Ichikawa & Yao, 1976
- Unuma latusicostatus
- Unuma michelei
- Unuma michelei Chiari, Marcucci & Prela 2002
- Unuma paulsmithi
- Unuma sp. X
- Unuma typicus
- Unuma unicum
- Unumgar
- Unumgar Chandler 2001
- Unumgar siccus
- Unumgar siccus Chandler 2001
- Unumgar siccus Chandler, 2001
- Unxia (Parunxia)
- Unxia (Parunxia) Napp 1977
- Unxia (Unxia) gracilior (Burmeister 1865)
- Unxia (Unxia) insignis (Guerin 1844)
- Unxia (Unxia) laeta (Guerin 1844)
- Unxia achillaeoides
- Unxia achillaeoides Less.
- Unxia achillaeoides Lessing
- Unxia achilleoides
- Unxia achilleoides Hemsl.
- Unxia achilleoides Less.
- Unxia alternifolia
- Unxia alternifolia Spreng.
- Unxia anemonifolia
- Unxia anemonifolia Kunth
- Unxia anthemidifolia
- Unxia anthemidifolia F.Phil.
- Unxia anthemifolia
- Unxia anthemifolia Bert. ex Colla
- Unxia anthemifolia Bertero
- Unxia anthemifolia Bertero ex Colla
- Unxia Bert. ex Colla
- Unxia camphorata
- Unxia camphorata L. f.
- Unxia camphorata L.f.
- Unxia camphorata Linnaeus f.
- Unxia digyna
- Unxia digyna Steetz
- Unxia digyna Steetz in Seem.
- Unyaphennoides dabber angustipes Ledoyer 1978
- Unyapheonoides
- Unyapheonoides Barnard 1972
- Unyapheonoides dabber
- Unyapheonoides dabber Barnard 1972
- Unyapheonoides dabber J.L. Barnard 1972
- Unyoria
- Unyoria Mich. 1896
- Unyoria Michaelsen 1895
- Unyoria Michaelsen 1896
- Unyoria papillata
- Unyoria papillata Michaelsen 1895
- Unyoria papillata Michaelsen 1896
- Unzela discrepans
- Unzela discrepans Walker 1856
- Unzela fuscatus
- Unzela fuscatus Rothschild & Jordan 1903
- Unzela japix
- Unzela japix Bönninghausen 1899
- Unzela japix Butler 1877
- Unzela japix B�nninghausen 1899
- Unzela japix Cramer 1776
- Unzela japix japix
- Unzela japix japix (Cramer 1776)
- Unzela japix Walker 1856
- Unzela japyx discrepans
- Unzela pronoe
- Unzela pronoe Druce 1894
- Unzela pronoe pronoe
- Unzela pronoe pronoe (Druce 1894)
- Unzela pronoe pronoe Druce 1894
- Unzela succinctus
- Unzela succinctus Felder 1874
- Unzela variegata
- Unzela variegata Rothschild 1896
- Unzela Walker 1856
- Unzhiella
- Unzhiella anusitata
- Unzhiella anusitata Mischina 1973
- Unzhiella gemella
- Unzhiella gemella Mischina 1973
- Unzhiella Mischina 1973
- Uollega Berio 1945
- Uollega ennatae
- Uollega ennatae Laporte 1984
- Uollega magdalenae
- Uollega magdalenae Laporte 1976
- Uollega roseoflammata
- Uollega roseoflammata Pinhey 1956
- Uollega ungemachi
- Uollega ungemachi Berio 1945
- Uomlatus Rees 1807
- Uotschatina Schallreuter & Hinz-Schallreuter 2002
- Uotschatina sulcata
- Uotschatina sulcata (Kanygin 1965)
- Uozumitrechus
- Uozumitrechus etoi
- Uozumitrechus subterraneus
- Uozumitrechus subterraneus Ueno 1958
- Uozumitrechus Uéno 1958
- Upa bidentata
- Upa bidentata Kimsey 1996
- Upa Kimsey 1991
- Upa Kimsey in Genise & Kimsey 1991
- Upa ligulata
- Upa ligulata Kimsey
- Upa ligulata Kimsey 1996
- Upa longispina
- Upa longispina Kimsey 1996
- Upa nasata Kimsey
- Upa nasuta
- Upa nasuta Kimsey 1996
- Upa porteri
- Upa porteri Kimsey 1996
- Upa tridentata
- Upa tridentata Kimsey 1996
- Upachara
- Upachara Dist 1906
- Upachara Distant 1906
- Upachara stigma
- Upachara stigma Dist 1906
- Upachara stigma Distant 1906
- Upachara stigma Distant, 1906
- Upachara straminea
- Upachara straminea Muir 1919
- Upachara straminea Muir, 1919
- Upapa
- Upapa epops
- Upapa Smith 1837
- Upella Pchelintsev 1968
- Upellidae
- Upellidae Pchelintsev 1968
- Upembaltica
- Upembaltica Bechyné 1960
- Upembarus
- Upembarus Koch 1956
- Upembarus saegeri
- Upembarus saegeri Koch, 1956
- Upembarus sympatrius
- Upembarus sympatrius Koch, 1956
- Upembarus upembaensis
- Upembarus upembaensis glabrior Koch, 1956
- Upembarus wittei
- Upembarus wittei debilis Koch, 1956
- Upembella
- Upembella adami
- Upembella adami Van Goethem 1969
- Upembella van
- Upembella Van Goethem 1969
- Upembellini van
- Upembellini van Goethem 1977
- upenaei Pillai 1962
- Upencichihys vlamingi
- Upencichihys vlamingi C. V.
- upenei (Yamaguti 1954)
- upenei Devi & Shyamasundari 1980
- upenei Yamaguti 1954
- Upeneichthys
- Uphantaenia Vanuxem 1842
- Uphantena
- Uphantenia
- Uphantenia Dawson & Hinde 1889
- Uphantenia Vanuxem 1842
- Uphantenia Vanuxem, 1842
- Uphantenidae
- Uphantenidae de Laubenfels 1957
- Uphelognatos
- Uphelognatos Filhol 1888
- Upheloguatos
- Upheloguatos quercyi
- Upheloguatos quercyi Filhol 1888
- Upiga
- Upiga Capps 1964
- Upiga virescens
- Upiga virescens (Hulst 1900)
- Upiga virescens Hulst 1900
- Upina
- Upina Villa 1833
- Upindauara
- Upindauara bella
- Upindauara bella Napp & Martins 2006
- Upindauara bella Napp & Martins, 2006
- Upindauara Napp & Martins 2006
- Upinella
- Upinella Mulsant 1856
- Upinella Mulsant E 1856
- Upis
- Upis (Iphthinus) angulata Erichson 1842
- Upis angulata
- Upis angulata Er.
- Upis angulata Erichson 1842
- Upis ceramboides
- Upis ceramboides (Linnaeus 1758)
- Upis ceramboides (Linnaeus,1758)
- Upis ceramboides Linn.
- Upis ceramboides Linné C von 1758
- Upis ceramhoides
- Upis crenata
- Upis crenata Boisduval 1835
- Upis crenipennis
- Upland Buuzzard
- upland yellow violet
- Uplandiops
- Uplexoa
- Uplexoa de Laubenfels
- Uplexoa de Laubenfels 1936
- Uplexoa oxeata
- Uplexoa oxeata (Dendy 1924)
- Uplexoa oxeata (Dendy, 1924)
- Uplonia
- Uplonia silviesi
- Uplonia silviesi Hertlein 1925
- Upmesdon Kaup & Scholl 1835
- Upmesodon
- Upmesodon Palmer 1904
- Upobegia dawsoni
- Upocompsus
- Upocompsus Erwin 1974
- Upocoprus
- Upocoprus latridioides
- Upocoprus latridioides Motschulsky 1839
- Upocoprus Motschoulsky 1844
- Upocoprus Motschulsky 1839
- Upoda
- Upoda Adans.
- Upoda Adanson 1763
- Upoda Adanson, 1763
- Upodemocera
- Upodemocera robinsoni
- Upodemocera robinsoni Townsend 1915
- Upodemocera robinsoni Townsend, 1915
- Upodemocera Townsend 1915
- Upodemocera Townsend, 1915
- Upogebia
- Upogebia (Acutigebia)
- Upogebia (Acutigebia) danai (Miers 1876)
- Upogebia (Acutigebia) Sakai 1982
- Upogebia (Acutigebia) simpsoni (Thomson 1893)
- Upogebia (Acutigebia) trypeta
- Upogebia (Acutigebia) trypeta Sakai 1970
- Upogebia (Calliadne)
- Upogebia (Calliadne) acanthura Coelho 1973
- Upogebia (Calliadne) amboinensis de Man 1888
- Upogebia (Calliadne) ancylodactyla de Man 1928
- Upper Eocene
- Upper Eocene foraminifera
- Upper Miocene
- Upplandiops
- Upplandiops calvus
- Upplandiops calvus Jaanusson & Ramskold 1993
- Upplandiops JAANUSSON & RAMSKÖLD 1993
- Upptaget
- Uppucerthia
- Uppucerthia Geoffroy & d'Orbigny 1838
- Upsaliensis Grun. in Cleve & Grun.
- upsaliensis Grunow in Cleve et Grunow 1880
- Upsallata
- Upsallata Mello-Leitão 1938
- Upselaspis
- Upselaspis caparti
- Upselaspis caparti (Fage 1951)
- Upselaspis caparti (Fage) 1951
- Upselaspis caparti (Fage, 1951)
- Upselaspis Jones 1955
- Upselaspis Jones, 1955
- Upselonphorus
- Upselonphorus Gill 1861
- Upselonphorus Gill 1861 sec. Eschmeyer 1998
- Upselonphorus Gill 1861 sec. Eschmeyer 2004
- Upselonphorus Gill 1861 sec. Steindachner 1876
- Upseneus
- Upseneus arge
- Upsicella
- Upsicella Capriles 1972
- upsicephalus Smith 1841
- Upsilidon
- Upsilidon Haas 1932
- Upsilodon
- Upsilodon Pilsbry 1930
- Upsilodus
- Upsilodus Miranda-Ribeiro 1924
- Upsilodus Miranda-Ribeiro 1924 sec. Eschmeyer 1998
- Upsilodus Miranda-Ribeiro 1924 sec. Eschmeyer 2004
- Uptionyx Conroy-Dalton & Huys 2000
- Uptionyx verenae
- Uptionyx verenae Conroy-Dalton & Huys 2000
- Uptionyx verenae Conroy-Dalton & Huys, 2000
- Uptiota
- Uptiota mithras
- Uptiota mithras Simon, 1864
- Uptiota Simon 1864
- Uptiotes
- Uptiotes anceps
- Uptiotes anceps schreberi
- Uptiotes anceps schreberi Walckenaer, 1837
- Uptiotes anceps Walckenaer, 1837
- Uptiotes paradoxus
- Uptiotes Walckenaer 1833
- Uptiotes Walckenaer 1838
- Uptona
- Uptona intermedia
- Uptona intermedia Medvedev & Lawrence 1986
- Uptona Medvedev & Lawrence 1986
- Uptona nigra
- Uptona nigra Medvedev & Lawrence 1986
- Uptona pallida
- Uptona pallida Medvedev & Lawrence 1986
- Uptona rufa
- Uptona rufa Medvedev & Lawrence 1986
- Uptonara
- Uptonia
- Uptonia ? dayiceroides Mouterde 1951
- Upucermia darwini Dubois 1900
- Upucermia fitz geraldi
- Upucermia fitz geraldi Dubois 1900
- Upucermia saturatior
- Upucermia saturatior Dubois 1900
- Upucerthia
- Upucerthia aaecola
- Upucerthia albigula
- Upucerthia albigula Hellmayr 1932
- Upucerthia albigula Hellmayr, 1932
- Upucerthia albiventris
- Upucerthia andaecola
- Upucerthia andaecola d'Orbigny & Lafresnaye 1838
- Upucerthia andaecola d'Orbigny & Lafresnaye, 1838
- Upucerthia andaecola Orbigny & Lafresnaye 1838
- Upucerthia andaecola Orbigny & Lafresnaye, 1838
- Upucerthia aricomae
- Upucerthia aricomae Carriker 1932
- Upucerthia atacamensis
- Upucerthia baeri
- Upucerthia baeri Oustalet 1904
- Upucerthia bridgesi
- Upucerthia bridgesi Sclater 1889
- Upucerthia certhiodes estebani
- Upucerthia certhiodes luscinia
- Upucerthia certhioides
- Upucerthia certhioides (d'Orbigny & Lafresnaye 1838)
- Upucerthia certhioides (d'Orbigny & Lafresnaye, 1838)
- Upucerthia certhioides (Orbigny & Lafresnaye 1838)
- Upyrrhidium cinnabarinum Plavil'shchikov 1940
- Upyrrhidium Plavilstshikov 1940
- Uraarachne
- Uraarachne Keyserling 1880
- Uraarachne longa
- Uraarachne longa Keyserling 1880
- Uraarachne longa Keyserling, 1880
- Uraarachne vittata
- Uraarachne vittata (Caporiacco 1954)
- Uraarachne vittata (Caporiacco, 1954)
- Uraba
- Uraba leucospila
- Uraba leucospila Turner 1899
- Uraba lugens
- Uraba lugens Walk.
- Uraba lugens Walker 1863
- Uraba lugens Walker, 1863 A
- Uraba Walker 1863
- urabaensis Campos & Lemaitre 1994
- urabensis Kim I.H. 2004
- Urabunana
- Urabunana daemeli
- Urabunana daemeli (Distant 1905)
- Urabunana daemeli (Distant, 1905)
- Urabunana daemeli Distant 1905
- Urabunana DIstant
- Urabunana Distant 1905
- Urabunana Distant, 1905
- Urabunana festiva
- Urabunana festiva Distant 1907
- Urabunana festiva Distant, 1907
- Urba punctata
- Urba punctata Sellards 1909
- Urba Sellards 1909
- Urbacodon
- Urbacodon Averianov & Sues 2007
- Urbacodon itemirensis
- Urbacodon itemirensis Averianov & Sues 2007
- Urban's holly
- urbana (Koehler 1904)
- urbana Harvey
- urbana Koehler 1904
- Urbananthus
- Urbananthus critoniformis
- Urbananthus critoniformis (Urb.) R.M. King & H. Rob.
- Urbananthus critoniformis (Urb.) R.M.King & H.Rob.
- Urbananthus critoniformis pubescens
- Urbananthus critoniformis ssp. pubescens Adams
- Urbananthus pluriseriatus
- Urbananthus pluriseriatus (B.L. Rob.) R.M. King & H. Rob.
- Urbananthus pluriseriatus (B.L.Rob.) R.M.King & H.Rob.
- Urbananthus R. M. King et H. E. Robinson, 1971
- Urbananthus R.M. King & H. Rob.
- Urbananthus R.M. King & H.E. Robinson 1971
- Urbananthus R.M.King & H.Rob.
- Urbanaspis
- Urbanaspis Ivshin 1953
- Urbanaspis Ivshin 1955
- Urbanaspis IVSHIN 1956
- Urbanaspis notabilis
- Urcaus Mörch 1857
- Urcea
- Urcea Scudder 1882
- Urceocharis
- Urceocharis clibrani
- Urceocharis clibranii
- Urceocharis edentata
- Urceocharis edentata C.H.Wright
- Urceocharis Mast.
- Urceocharis × clibrani Mast.
- Urceocharis × clibranii Mast.
- Urceodiscus
- Urceodiscus arfakensis
- Urceodiscus arfakensis W. J. de Wilde & Duyfjes
- Urceodiscus arfakensis W.J.de Wilde & Duyfjes
- Urceodiscus belensis (Merr. & L.M.Perry) W.J.de Wilde & Duyfjes
- Urceodiscus belensis (Merr. & L.M.Perry) W.J.de Wilde & Duyfjes var. conferta W.J.de Wilde & Duyfjes
- Urceodiscus belensis (Merr. & L.M.Perry) W.J.de Wilde & Duyfjes var. laxa W.J.de Wilde & Duyfjes
- Urceodiscus belensis (Merr. & Perry) W. J. de Wilde & B. E. E. Duyfjes var. laxa W. J. de Wilde & B. E. E. Duyfjes
- Urceodiscus belensis (Merrill & L. M. Perry) W. J. de Wilde & Duyfjes
- Urceodiscus belensis var. belensis
- Urceodiscus belensis var. conferta
- Urceodiscus belensis var. conferta W.J.de Wilde & Duyfjes
- Urceodiscus belensis var. laxa
- Urceodiscus belensis var. laxa W.J.de Wilde & Duyfjes
- Urceodiscus carrii
- Urceodiscus carrii W.J.de Wilde & Duyfjes
- Urceodiscus hippocrepicus
- Urceodiscus hippocrepicus W. J. de Wilde & Duyfjes
- Urda cf. U. cretacea
- Urda mccoyi
- Urda mccoyi (Carter 1889)
- Urda Muenster 1840
- Urda Munster 1840
- Urda Reiche 1843
- Urda zelandica
- Urda zelandica Buckeridge & Johns 1996
- Urdacyathus
- Urdacyathus Perejon & Moreno 1978
- urdaibaiense Marquiegui & Perez 2006
- Urdia
- Urdia barbata
- Urdia barbata Qvale 1980
- Urdia Qvale 1980
- Urdica dioica
- Urdidae
- Urdidae (Kunth )
- Urdidae (Kunth)
- Urdiporella
- Urdiporella Dragastan 1989
- Urdugraphus
- Urdugraphus difficilis
- Urdugraphus difficilis Beeson 1941
- Urdugraphus difficilis Beeson, 1941
- urdunensis Bandel 2005
- Urea Thorne & Swanger 1936
- Ureaginthus lanthinogaster
- Ureaplasma
- Ureaplasma canigenitalium
- Ureaplasma canigenitalium Harasawa et al. 1993
- Ureaplasma cati
- Ureaplasma cati Harasawa et al. 1990
- Ureaplasma diversum
- Ureaplasma diversum Howard & Gourlay 1982
- Ureaplasma diversum Howard and Gourlay 1982
- Ureaplasma felinum
- Ureaplasma felinum Harasawa et al. 1990
- Ureaplasma gallorale
- Ureaplasma gallorale Koshimizu et al. 1987
- Ureaplasma loridis
- Ureaplasma M.C. Shepard, C.D. Lunceford, D.K. Ford, R.H. Purcell, D. Taylor-Robinson, S. Razin & F.T. Black, 1974
- Ureaplasma parvum
- Ureaplasma parvum Robertson et al. 2002
- Ureaplasma Shepard et al. 1974
- Ureaplasma Shepard et al. 1974 (Approved Lists 1980)
- Ureaplasma urealyticum
- Ureaplasma urealyticum Shepard et al. 1974 (Approved Lists 1980)
- Ureaplasma urealyticum Shepard et al. 1974 emend. Robertson et al. 2002
- Ureaplasma urealyticum Shepard et al., 1974
- Ureceolaria synaptae (Trichodina synaptae) Cuenot
- Urecha
- Urecha annulicornis
- Urecha annulicornis Pic 1934
- Urecha annulicornis PIC Maurice, 1934
- Urfacus bozovaensis
- Urfacus bozovaensis Doganlar 2003
- Urfacus bozovaensis Doganlar, 2003
- Urfacus Doganlar 2003
- Urftella
- Urftella (Mackenziella)
- Urftella (Mackenziella) Becker & Braun 2007
- Urftella (Mackenziella) rotunda Becker & Braun 2007
- Urftella adamczaki
- Urftella adamczaki Becker 1970
- Urftella Becker 1970
- Urftella dentis McGill 1963
- Urftella keescarpensis McGill 1968
- Urftella rotunda
- Urftellacea
- Urftellidae
- Urftellidae Becker
- Urftellidae Becker 1970
- Urftia
- Urftia convexa
- Urftia convexa Heidelberger & Bandel 1999
- Urftia Heidelberger & Bandel 1999
- Urgachilina Melnikova 1978
- Urgachilina varicosa
- Urgachilina varicosa Melnikova 1978
- urganantus Rafinesque 1814
- Urganus
- Urganus chosenensis Matsumura 1915
- Urganus Dlabola 1965
- Urganus paradarrinus
- Urganus paradarrinus Dlabola 1965
- Urgedra
- Urgedra albodiscata
- Urgedra albodiscata Dognin 1910
- Urgedra albodiscota
- Urgedra benca
- Urgedra benca Schaus 1937
- Urgedra brunea
- Urgedra brunea Druce 1911
- Urgedra chaon
- Urgedra chaon Druce 1911
- Urgedra dissociata
- Urgedra dissociata Dognin 1910
- Urgedra dissolvens
- Urgedra dissolvens Dognin 1910
- Urgedra Dyar 1908
- Urgedra fremida
- Urgedra fremida Dognin 1911
- Urgedra luceria
- Urgedra luceria Druce 1911
- Urgedra multilineata
- Uria
- Uria (Cepphus) grylle
- Uria a aalge U. a. albionis
- Uria a. aalge
- Uria a. albionis
- Uria a. californiae
- Uria a. californica
- Uria a. catifornica
- Uria a. hyperborea
- Uria a. inornata
- Uria a. spiloptera
- Uria aagle aagle
- Uria aalga
- Uria aalgae
- Uria aalgae aalgae
- Uria aalgae albionis
- Uria aalge
- Uria aalge (Pontoppidan 1763)
- Uria aalge (PONTOPPIDAN)
- Uria aalge (Pontoppidan) 1763
- Uria aalge (Pontoppidan, 1763)
- Uria aalge (Pontoppidan, 1763) subsp. aalge
- Uria aalge (Pontoppidan,1763)
- Uria aalge aalge
- Uria aalge aalge (Pontoppidan 1763)
- Uria aalge aalge (Pontoppidan, 1763)
- Uria aalge albionis
- Uria aalge albionis Witherby 1923
- Uria aalge californica
- Urjungaspis EGOROVA & SAVITSKY 1968
- Urjungaspis picta
- Urjungaspis picta Egorova & Savitsky 1968
- Urjungaspis picta Savitsky & Yegorova 1969
- Urkutipollenites M. Kedves 1974
- Urkutipollenites M. Kedves, 1974
- Urkutites
- Urkutites Geczy 1967
- Urkutitoma
- Urkutitoma bartkoi
- Urkutitoma bartkoi Szabo 1984
- Urkutitoma Szabo 1984
- Urleta ometoides
- Urleta ometoides Westwood 1875
- Urleta Westwood 1875
- Urleta Westwood, 1875
- Urlicina felina
- Urliella
- Urliella Foissner 1987
- Urliella Foissner 1989
- Urliella Foissner, 1989
- Urliella terricola
- Urliella terricola Foissner 1987
- Urlocella
- Urlocella Grundel 1998
- Urlocella minuera
- Urlocella minuera Grundel 1998
- Urma distincta
- Urmenetea
- Urmenetea atacamensis
- Urmenetea atacamensis Phil.
- Urmenetea Phil.
- Urmenetea Philippi 1860
- Urmenetea Philippi, 1860
- Urmiabos
- Urmiabos azerbaidzanicus Burtchak-Abramovitch 1950
- Urmiabos Burtchak-Abramovitch 1950
- Urmiatheriinae
- Urmiatherium
- Urmiatherium intermedium
- Urmiatherium polaki
- Urmiatherium polaki Rodler 1889
- Urmiatherium Rodler 1888
- Urmila
- Urmila Dworakowska 1981
- Urmila tripunctata
- Urmila tripunctata Dworakowska 1981
- Urmiornis
- Urmiornis abeli
- Urmiornis abeli Lambrecht 1938
- Urmiornis brodkorbi
- Urmiornis brodkorbi Karhu 1997
- Urmiornis cracrafti
- Urmiornis cracrafti Harrison & Walker 1982
- Urmiornis maraghanus
- Urmiornis maraghanus Mecquenen 1925
- urna Grube
- urna Grube 1840
- urna Haeckel 1872
- urna Hamilton 1822
- urna Schulze 1904
- urna Wagener 1852
- Urnacephala
- Urnacephala californica
- Urnacephala californica Wygodzinsky & Schmidt 1991
- Urnacephala Wygodzinsky & Schmidt 1991
- Urnacristata
- Urnacristata de Laubenfels 1955
- Urnacristata de Laubenfels 1957
- Urnacristatidae
- Urnacristatidae Vologdin 1963
- urnaeformis Gail 1950
- Urnaepimeritus
- Urnaepimeritus H.Hoshide,1959
- Urnaepimeritus Hoshide 1959
- Urnaepimeritus Hoshide 1970
- Urnalana
- Urnalana angulata
- Urnalana angulata (Rathbun 1911)
- Urnalana chevreti
- Urnalana chevreti (Haswell 1880)
- Urnalana cristata
- Urnalana cristata Galil & Ng 2007
- Urnalana cumingii
- Urnalana cumingii (Bell 1855)
- Uroactinia (Chiropturopoda) brevipilus Driel, Loots & Marais 1977
- Uroactinia (Chiropturopoda) coprophila Sellnick 1958
- Uroactinia (Chiropturopoda) nidiphila
- Uroactinia (Chiropturopoda) nidiphila Wisniewski & Hirschmann 1983
- Uroactinia (Uroactinia) anchor
- Uroactinia (Uroactinia) brasiliensis (Berlese 1903)
- Uroactinia (Uroactinia) brevipilus Driel, Loots & Marais 1977
- Uroactinia (Uroactinia) consanguinea (Berlese 1905)
- Uroactinia (Uroactinia) daelei
- Uroactinia (Uroactinia) daelei Hirschmann 1981
- Uroactinia (Uroactinia) hippocrepea (Berlese 1917)
- Uroactinia (Uroactinia) hippocrepoides (Vitzthum 1935)
- Uroactinia (Uroactinia) hirschmanni
- Uroactinia (Uroactinia) hirschmanni Hiramatsu 1978
- Uroactinia anchor
- Uroactinia anchor (Trouessart 1902)
- Uroactinia angolensis
- Uroactinia angolensis Kontschan 2006
- Uroactinia aquatica
- Uroactinia aquatica (Piersig 1706)
- Uroactinia assamensis
- Uroactinia assamensis Hirschmann 1990
- Uroactinia australiensis
- Uroactinia australiensis Hirschmann 1990
- Uroactinia bicarinata
- Uroactinia bicarinata (Tragardh 1931)
- Uroactinia brasiliensis
- Uroactinia brasiliensis (Berlese 1903)
- Uroactinia brasiloides
- Urpicalis steemansii
- Urpstylis
- Urpstylis striicornis
- Urqphora stigma (Loew )
- Urquharti
- Urquharti Broun T 1893
- Urquhartia
- Urquhartia Bryant 1930
- Urquhartia Bryant 1933
- Urquhartia livoris
- Urquhartia livoris Bryant, 1933
- Urrua
- Urrua Hodgson 1837
- Urrusia
- Urrusia eversmanni
- Urrusia eversmanni (Eversmann 1847)
- Urrusia Zhdanko 2005
- Urrutia
- Urrutia lomalica
- Urrutia lomalica Ramme 1925
- Urrutia migiurtinia
- Urrutia migiurtinia Baccetti 1990
- Urrutia migiurtinia Baccetti, 1990
- Urrutia Ramme 1925
- Urrutia somalica
- Urrutia somalica Ramme 1925
- Urrutia somalica Ramme, 1925
- Ursa flavovittata
- Ursa flavovittata Simon 1909
- Ursa flavovittata Simon, 1909
- Ursa liliputana
- Ursa liliputana Archer, 1963
- Ursa lunula
- Ursa lunula (Nicolet 1849)
- Ursa lunula (Nicolet, 1849)
- Ursa pulchra
- Ursa pulchra Simon 1895
- Ursa pulchra Simon, 1895
- Ursa Simon 1895
- Ursa transversalis
- Ursa transversalis Mello-Leitao, 1951
- Ursa turbinata
- Ursa turbinata Simon 1895
- Ursa turbinata Simon, 1895
- Ursa vittigera
- Ursa vittigera Simon 1895
- Ursa vittigera Simon, 1895
- ursabrunae Jefferts 1985
- Ursarctos
- Ursarctos Heude 1898
- Ursaspongia
- Ursaspongia Rigby 1985
- Ursaspongia tulipa
- Ursaspongia tulipa Rigby 1985
- Ursavinae
- Ursavinae Hendey 1980
- Urtasella Malakhova 1979
- Urtasymoceras
- Urtasymoceras urtasimensis
- Urtasymoceras urtasimensis (Nalivkin 1947)
- Urtasymoceras Zhuravleva 1972
- Urtea
- Urtea graeca
- Urtea graeca Paulus 2004
- Urtea graeca Paulus, 2004
- Urtea Paulus 2004
- Urtea Paulus, 2004
- Urtelornis
- Urtelornis chimoera
- Urtelornis chimoera Rothschild 1895
- Urtelornis Rothschild 1895
- Urtica
- Urtica (Dendrourtica)
- urtica (Lyman 1860)
- Urtica (Sarcourtica)
- Urtica acerifolia
- Urtica acerifolia Zenker
- Urtica acuminata
- Urtica acuminata Poir.
- Urtica acuminata Roxb.
- Urtica adoensis
- Urtica adoensis Hochst.
- Urtica adoensis Hochst. ex Steud.
- Urtica adoensis Hochstetter ex Steudel
- Urtica aestuans
- urua (Hamilton 1822)
- urua (Marcus 1954)
- urua Hamilton 1822
- urua Marcus 1954
- Uruactia
- Uruactia Townsend 1927
- Uruactia uruhuaai
- Uruactia uruhuaai Townsend 1927
- Uruactia uruhuasi
- Uruactia uruhuasi Townsend 1927
- Uruactia uruhuasi Townsend, 1927
- Uruba
- Uruba Kirby 1892
- Urubamba
- Urubamba apicimacula
- Urubamba apicimacula Ronderos 1979
- Urubamba apicimacula Ronderos, 1979
- Urubamba aptera
- Urubamba aptera Bruner 1913
- Urubamba aptera Bruner, 1913
- Urubamba aptera Bruner, L. 1913
- Urubamba aptera Bruner, L., 1913
- Urubamba Bruner 1913
- Urubamba colorata
- Urubamba colorata Ronderos 1981
- Urubamba colorata Ronderos, 1981
- Urubamba ecuadorica
- Urubamba ecuadorica Hebard 1924
- Urubamba ecuadorica Hebard, 1924
- Urva cancrivora
- Urva Hodgson 1837
- Urvana
- Urvana Dworakowska 1993
- Urvana pictilis
- Urvana pictilis Dworakowska 1993
- Urvana taiwana
- Urvana taiwana Dworakowska 1993
- Urvaschia
- Urvaschia Hopp 1987
- Urvaschia pterosticta
- Urvaschia pterosticta Hopp 1987
- Urvashia
- Urvashia dentipara
- Urvashia dentipara Gupta & Gupta
- Urvashia dentipara Gupta 1970
- Urvashia Gupta & Gupta 1971
- Urvashia Gupta 1970
- urveilli Edwards & Haime 1849
- Urvilla
- Urvilla stipitata
- Urvilla villosa
- Urvillaea
- Urvillaea DC.
- Urvillea
- Urvillea affinis
- Urvillea affinis Schltdl.
- Urvillea andersonii
- Urvillea andersonii Ferrucci
- Urypus Rafinesque 1815
- Urytalpa
- Urytalpa atriceps
- Urytalpa atriceps (Edwards 1913)
- Urytalpa atriceps Edwards, 1913
- Urytalpa attenuata
- Urytalpa attenuata Zaitzev
- Urytalpa attenuata Zaitzev & Menzel 1996
- Urytalpa attenuata Zaitzev & Menzel, 1996
- Urytalpa chandleri
- Urytalpa chandleri Bechev & Koc 2008
- Urytalpa chandleri Bechev & koc, 2008
- Urytalpa corniculata
- Urytalpa corniculata Ostroverkhova, 1979
- Urytalpa crassicauda
- Urytalpa crassicauda Uesugi 2004
- Urytalpa crassicauda Uesugi, 2004
- Urytalpa Edw.
- Urytalpa Edwards
- Urytalpa Edwards 1929
- Urytalpa macrocera
- Urytalpa macrocera (Edwards 1913)
- Urytalpa macrocera Edwards, 1913
- Urytalpa maritima
- Urytalpa maritima (Becker 1907)
- Urytalpa nussbaumi
- Urytalpa nussbaumi Chandler
- Urytalpa nussbaumi Chandler 1994
- Urytalpa nussbaumi Chandler, 1994
- usa (de Laubenfels 1942)
- usa de Laubenfels 1942
- usa paradisiaca sapientum
- Usa Whitley 1927
- usa x paradisiaca L. (pro sp.) subsp. sapientum (L.) Kuntze
- usacarangis (Avdeev 1979)
- usacarangis Avdeev 1979
- Usacaranx
- Usacaranx archeyi
- Usacaranx archeyi Griffin 1932
- Usacaranx archeyi Griffin 1932 sec. Eschmeyer 2004
- Usacaranx archeyi Griffin, 1932
- Usacaranx declivis
- Usacaranx declivis Stinton 1980
- Usacaranx georgianus
- Usacaranx georgianus (Cuvier 1833)
- Usacaranx georgianus (Cuvier, 1833)
- Usacaranx georgianus subsp. wrighti
- Usacaranx georgianus subsp. wrighti Whitley 1931
- Usacaranx georgianus subsp. wrighti Whitley 1931 sec. Eschmeyer 2004
- Usacaranx georgianus subsp. wrighti Whitley, 1931
- Usacaranx georgianus wrighti
- Usacaranx georgianus wrighti Whitley 1931
- Usacaranx georgianus wrighti Whitley, 1931
- Usacaranx insulanorum
- Usacaranx insulanorum Whitley 1937
- Usacaranx insulanorum Whitley 1937 sec. Eschmeyer 2004
- Usacaranx lutescens
- Usacaranx nobilis
- Usbeca cornuta
- Usbeca cornuta Pungeler
- Usbeca cornuta Püngeler 1914
- Usbeca cornuta P�ngeler 1914
- Usbeca kulmburgi
- Usbeca kulmburgi (Rebel 1918)
- Usbeca kulmburgi Rebel 1918
- Usbeca Puengeler 1914
- Usbeca Pungeler
- Usbeca Pungeler 1914
- Usbekistania
- Usbekistania charoides
- Usbekistania charoides (Jones & Parker 1860)
- Usbekistania charoides antarctica
- Usbekistania charoides antarctica Saidova 1975
- Usbekistania globosa
- Usbekistania globosa Fuchs 1970
- Usbekistania kenawyi
- Usbekistania kenawyi Abd-Elshafy & Ibrahim 1990
- Usbekistania Suleymanov 1960
- Usbekistania Suleymanov, 1960
- Usbekistaniinae
- Usbekistaniinae Vyalov 1968
- Usbekistaniinae Vyalov, 1987
- Usbekodesmus
- Usbekodesmus anachoretus
- Usbekodesmus anachoretus Golovatch 1986
- Usbekodesmus buddhis
- Usbekodesmus buddhis Golovatch 1986
- Uscana alami
- Uscana alami Yousuf & Shafee
- Uscana alami Yousuf & Shafee 1987
- Uscana alami Yousuf & Shafee 1988
- Uscana alami Yousuf & Shafee, 1988
- Uscana bruchidiusi
- Uscana bruchidiusi Pajni & Tewari 2004
- Uscana bruchidivorax
- Uscana bruchidivorax Steffan
- Uscana bruchidivorax Steffan 1954
- Uscana bruchidivorax Steffan, 1954
- Uscana bruchivorax
- Uscana bruchivorax Steffan
- Uscana bruchocida
- Uscana bruchocida Vassiliev 1947
- Uscana callosobruchi
- Uscana callosobruchi Lin
- Uscana callosobruchi Lin 1994
- Uscana callosobruchi Lin, 1994
- Uscana callososbruchi
- Uscana callososbruchi Lin 1994
- Uscana caryedoni
- Uscana caryedoni Viggiani
- Uscana caryedoni Viggiani 1986
- Uscana caryedoni Viggiani 1987
- Uscana caryedoni Viggiani, 1986
- Uscana chilensis
- Uscana chilensis Pintureau & Gerding 1999
- Uscana chilensis Pintureau & Gerding, 1999
- Usechimorpha
- Usechimorpha barberi
- Usechimorpha barberi Blaisdell 1929
- Usechimorpha barberi Blaisdell FR 1929
- Usechimorpha barberi Blaisdell, 1929
- Usechimorpha Blaisdell 1929
- Usechimorpha Blaisdell FR 1929
- Usechimorpha Blaisdell, 1929
- Usechimorpha montanus
- Usechimorpha montanus Doyen & Lawrence 1979
- Usechimorpha montanus Doyen in Doyen and Lawrence 1979
- Usechimorpha montanus Doyen in Doyen and Lawrence, 1979
- Usechinae
- Usechinae Horn, 1867
- Usechini
- Usechus
- Usechus chujoi
- Usechus chujoi Kulzer 1960
- Usechus chujoi Kulzer H 196
- Usechus lacerta
- Usechus lacerta (Motsch. )
- Usechus lacerta Blaisdell 1929
- Usechus lacerta horni
- Usechus lacerta horni Blaisdell FR 1929
- Usechus lacerta Motschulsky
- Usechus lacerta Motschulsky 1845
- Usechus lacerta Motschulsky von V 1845
- Usechus lacerta Motschulsky, 1845
- Usechus lacerta santaclarae
- Usgenta Holik & Sheljuzhko 1956
- Usgentia
- Usgentia Amsel 1949
- Usgentia quadridentale
- Usgentia quadridentale Zerny 1914
- Usgmona
- Usgmona Furukawa 1970
- Usgmona genji
- Usgmona genji Furukawa 1970
- Usgmona genji Furukawa, 1970
- ushakovi Brodsky 1955
- ushakovi Djakonov 1938
- ushakovi Djakonov 1954
- ushakovi Murina 1974
- ushakovi Sokolov 1952
- ushakovi Sokolov 1962
- Ushamenona
- Ushamenona Malhotra & Sharma 1974
- Usharia
- Usharia ancora
- Usharia ancora Zhang & Qin 2005
- Usharia atma
- Usharia atma Dworakowska 1994
- Usharia cassiae
- Usharia cassiae Dworakowska 1984
- Usharia constricta
- Usharia constricta Zhang & Qin 2005
- Usharia denticulata
- Usharia denticulata Zhang & Qin 2005
- Usharia Dworakowska 1977
- Usharia excurrens
- Usharia excurrens Zhang & Qin 2005
- Usharia glabra
- Usharia glabra Dworakowska 1980
- Usharia hyzha
- Usharia hyzha Dworakowska 1977
- Usharia marginata
- Usharia marginata Zhang & Qin 2005
- Usharia mata
- Usia (Micrusia)
- Usia (Micrusia) aurata
- Usia (Micrusia) aurata (Fabricius 1794)
- Usia (Micrusia) aurata Fabricius, 1794
- Usia (Micrusia) engeli Paramonov 1950
- Usia (Micrusia) Evenhuis 1989
- Usia (Micrusia) Evenhuis 1990
- Usia (Micrusia) forcipata
- Usia (Micrusia) forcipata Brullé 1833
- Usia (Micrusia) loewi
- Usia (Micrusia) novakii
- Usia (Micrusia) novakii Strobl 1902
- Usia (Micrusia) pusilla
- Usia (Micrusia) pusilla Meigen 1820
- Usia (Micrusia) sicula
- Usia (Micrusia) sicula Egger 1859
- Usia (Micrusia) taeniolata
- Usia (Micrusia) versicolor
- Usia (Micrusia) versicolor (Fabricius 1787)
- Usia (Micrusia) versicolor Fabricius, 1787
- Usia (Usia)
- Usia (Usia) accola
- Usia (Usia) aenea (Rossi 1794)
- Usia (Usia) aeneoides
- Usia (Usia) aeneoides Paramonov 1950
- Usia (Usia) albifrons
- Usia (Usia) albifrons Gmelin, 1790
- Usia (Usia) anenus
- Usia (Usia) anenus Rossi, 1794
- Uskardita mikraulax
- Uskardita mikraulax Ratter & Cope 1998
- Uskardita Ratter & Cope 1998
- Uskatelytridae
- Uskatelytron
- Uskatelytrum
- Uskatelytrum Martynova 1952
- Uskatia
- Uskatia Neuburg 1960
- Uskatia Neuburg, 1960
- Uskatocoleus chengdeensis
- Uskatocoleus chengdeensis Mi, Zhang & Sun 1993
- Uskiella
- Uskiella C. H. Shute et D. Edwards, 1989
- Uskiella C.H. Shute & D. Edwards 1989
- Uskiella reticulata
- Uskiella spargens
- Uskutchiell
- Uskutchiella
- Uskutchiella Melnikova 1992
- Uskutchiella sulcata
- Uskutchiella sulcata Melnikova 1992
- Uslaria morchellaeformis
- Uslaria morchellaeformis (Vittad.) Nieuwl.
- Uslaria morchellaeformis (Vittad.) Nieuwl. 1916
- Uslaria Nieuwl. 1916
- Uslaria Nieuwland 1916
- Uslaria Nieuwland, 1916
- Usloncyathidae
- Usloncyathidae Fonin 1966
- Usloncyathidae Fonin in Vologdin & Fonin 1966
- Usloncyathoidea
- Usloncyathoidea Fonin 1966
- Usloncyathus
- Usloncyathus Fonin 1966
- Uslonia
- Uslonia Antropov 1959
- Uslonia Antropov, 1950
- Uslonia orientalis Mikluho-Maklai 1964
- Uslonia orientalis Miklukho-Maklai 1965
- Usloniidae
- Usloniidae A.D. Miklukho-Maklay, 1963
- Usloniidae Miklukho Maklay 1963
- Usloniidae Miklukho-Maklay 1963
- Usloniinae
- Usloniinae Miklukho Maklay 1963
- Usloniinae Miklukho-Maklay 1963
- Usmania
- Usmania A. S. Lazarenko, 1970
- Usmania A.S. Lazarenko 1970
- Usmia
- Usmia imaii
- Usmunia
- Usmunia L. A. Bogdanova, 1984
- Usmunia L.A. Bogdanova 1984
- Usnea (Dolichousnea)
- Usnea (Lethariella)
- Usnea (Protousnea)
- usnea (R. Brown ex Turner) J. Agardh 1852
- Usnea abissinica
- Usnea abissinica Motyka
- Usnea abissinica Motyka 1938
- Usnea acanthella
- Usnea acanthella (I. M. Lamb) F. J. Walker 1985
- Usnea acanthella (I.M. Lamb) F.J. Walker
- Usnea acanthella (I.M. Lamb) F.J. Walker 1985
- Usnea acanthella (Lamb) F. J. Walker
- Usnea acanthera
- Usnea acanthera Motyka 1937
- Usnea acanthera Vain.
- Usnea acanthera Vain. 1937
- Usnea aciculifera
- Usnea aciculifera abbreviata
- Usnea aciculifera aciculifera
- Usnea aciculifera f. abbreviata
- Usnea aciculifera f. abbreviata Asahina
- Usnea aciculifera f. abbreviata Asahina 1956
- Usnea aciculifera f. aciculifera
- Usnea aciculifera f. aciculifera Vain.
- Usnea aciculifera Vain.
- Usnea aciculifera Vain. 1930
- Usnea acromelana
- Usnea acromelana acromelana
- Usnea acromelana decipiens
- Usofila flava
- Usofila flava Chamberlin & Ivie 1942
- Usofila flava Chamberlin & Ivie, 1942
- Usofila flava Emerit, 1984
- Usofila flava Emerit, 1985
- Usofila gracilis
- Usofila gracilis Comstock, 1940
- Usofila gracilis Keyserling 1891
- Usofila gracilis Keyserling, 1891
- Usofila gracilis Marx 1891
- Usofila gracilis Yaginuma, 1974
- Usofila Keyserling 1891
- Usofila Marx 1891
- Usofila oregona
- Usofila oregona Chamberlin & Ivie 1942
- Usofila oregona Chamberlin & Ivie, 1942
- Usofila oregona Emerit, 1984
- Usofila oregona Emerit, 1985
- Usofila oregona Yaginuma, 1974
- Usofila pacifica
- Usofila pacifica (Banks 1894)
- Usofila pacifica (Banks, 1894)
- Usofila pacifica Banks, 1894
- Usofila pacifica Chamberlin & Ivie, 1947
- Usofila pacifica Emerit, 1984
- Usofila pacifica Emerit, 1985
- Usofila pecki
- Usofila pecki Brignoli 1980
- Usofila pecki Brignoli, 1980
- Uspachus albipalpis
- Uspachus albipalpis (Taczanowski 1878)
- Uspachus albipalpis (Taczanowski, 1878)
- Uspachus albipalpis (Takzanowski 1879)
- Uspachus andinus
- Uspachus andinus (Taczanowski 1878)
- Uspachus andinus (Taczanowski 1879)
- Uspachus andinus (Taczanowski, 1878)
- Uspachus bahiensis
- Uspachus bahiensis Galiano 1995
- Uspachus bahiensis Galiano, 1995
- Uspachus colombianus
- Uspachus colombianus Galiano 1995
- Uspachus colombianus Galiano, 1995
- Uspachus Galiano 1995
- Uspachus juquiaensis
- Uspachus juquiaensis Galiano 1995
- Uspachus juquiaensis Galiano, 1995
- Uspachus ministerialis
- Uspachus ministerialis (C. L. Koch 1846)
- Uspachus ministerialis (C. L. Koch, 1846)
- Uspachus ministerialis (Koch 1846)
- Uspachus misionensis
- Uspachus misionensis Galiano 1995
- Uspachus misionensis Galiano, 1995
- Uspachus patellaris
- Uspachus patellaris Galiano 1995
- Uspachus patellaris Galiano, 1995
- uspae Gawel & Woodland 1974
- Ussa Heude 1888
- Ussara
- Ussara ancobathra
- Ussara ancobathra Meyrick 1932
- Ussara ancyrislis
- Ussara ancyrislis Meyrick 1920
- Ussara ancyristis
- Ussara ancyristis Meyrick 1920
- Ussara arquata
- Ussara arquata Meyrick 1926
- Ussara arquata Meyrick 1927
- Ussara chalcodesma
- Ussara chalcodesma Meyrick 1913
- Ussara chrysangela
- Ussara chrysangela Meyrick 1922
- Ussara decoratella
- Ussara decoratella Walker 1864
- Ussara eumitrella
- Ussara eumitrella Busck 1914
- Ussara eurythmiella
- Ussara eurythmiella Busck 1914
- Ussara hilarodes
- Ussara hilarodes (Meyrick 1909)
- Ussara hilarodes Meyrick 1909
- Ussara hilarodes Meyrick 1935
- Ussara iochrysa
- Ussara iochrysa Meyrick 1921
- Ussara olyranta
- Ussara olyranta Meyrick 1931
- usta (Valenciennes 1840)
- Usta abyssinica
- Usta abyssinica Aurivillius 1898
- Usta alba
- Usta alba Terral & Lequeux 1991
- Usta angulata
- Usta angulata Rothschild 1895
- Usta biplaga
- Usta biplaga Rebel 1912
- Usta grantae
- Usta grantae Terral & Lequeux 1991
- Usta subangulata
- Usta subangulata Bouvier 1930
- Usta subangulata yaere
- Usta subangulata yaere Darge 1994
- Usta terpischore
- Usta terpsichore
- Usta terpsichore (Maassen & Weyding )
- Usta terpsichore (Maassen & Weyding)
- Usta terpsichore Maassen & Weymer 1885
- Usta terpsichorina
- Usta terpsichorina Westwood 1881
- Usta Wallengren 1863
- Usta Wallengren 1865
- Usta wallengreni
- Usta wallengreni (Felder, 1859)
- Usta wallengreni Felder 1859
- Usta wallengrenii
- Ustacystis
- Usubaia Kamijo 1983
- Usubaia liparae
- Usubaia liparae Kamijo
- Usubaia liparae Kamijo 1983
- Usubaia liparae Kamijo, 1983
- Usubis
- Usubis Burm. f.
- Usubis Burm.f.
- Usubis N. L. Burman, 1768
- Usubis N.L. Burman 1768
- Usubis triphylla
- Usubis triphylla Burm. f.
- Usubis triphylla Burm.f.
- Usuironus
- Usuironus Ishihara 1953
- Usuironus limbifer
- Usuironus limbifer Matsumura 1902
- Usuironus quadrimaculatus
- Usuironus quadrimaculatus Cai & Shen 1999
- Usumbaraia
- Usumbaraia ampliata
- Usumbaraia arnaudi
- Usumbaraia arnaudi Kormilev 1979
- Usumbaraia elongata
- Usumbaraia Kormilev 1956
- Usumbaraia muehlei
- Usumbaraia muehlei Heiss 1988
- Usumunaspis
- Usumunaspis convexa
- Usvaella grandiosa
- Usvaella grandiosa (Kon. )
- Usvaella grandiosa (Kon.)
- Usvaella horribila
- Usvaella horribila (Solov. )
- Usvaella horribila (Solov.)
- Usvaella kozhymiensis
- Usvaella kozhymiensis (Kon. )
- Usvaella kozhymiensis (Kon.)
- Usvaella plicata
- Usvaella plicata (Sham. )
- Usvaella plicata (Sham.)
- Usvaella porifera
- Usvaella porifera (Remizov )
- Usvaella porifera (Remizov)
- Usvaella Remizova 1993
- Usvaella salukaensis
- Usvaella salukaensis (Kon. )
- Usvaella salukaensis (Kon.)
- Uta (Phymatolepis)
- Uta (Phymatolepis) lateralis
- Uta (Phymatolepis) lateralis BOULENGER 1883
- Uta anonymorpha
- Uta anonymorpha MITTLEMAN 1940
- Uta anonymorpha MITTLEMAN 1940: 34
- Uta antiqua
- Uta antiqua Ballinger & Tinkle 1968
- Uta antiqua BALLINGER 1968
- Uta antiqua Ballinger and Tinkle, 1968
- Uta antiqua LINER 1994
- Uta antiquus
- Uta antiquus Ballinger & McKinney 1968
- Uta auriculata
- Uta auriculata COPE 1871
- Uta auriculata COPE 1871: 303
- Uta auriculata Cope 1874
- Uta auriculatus
- Uta Baird & Girard
- Uta Baird & Girard 1852
- Uta Baird & Girrard 1852
- Uta Baird and Girard, 1852
- Uta bi-carinata
- Uta bi-carinata bi-carinata
- Uta bi-carinata bi-carinata MITTLEMAN 1941: 70
- Uta bi-carinata tuberculata
- Uta bi-carinata tuberculata MITTLEMAN 1941: 73
- Uta bicarinata
- Uta bicarinata anonymorpha
- Utchurella P. N. Kolosov in A. K. Bobrov, 1970
- Utchurella P.N. Kolosov in A.K. Bobrov 1970
- Ute amphora
- Ute ampullacea
- Ute ampullacea Wörheide & Hooper 2002
- Ute ampullacea Worheide & Hooper 2003
- Ute ampullacea Wörheide & Hooper, 2002
- Ute ampullacea Wörheide & Hooper, 2003
- Ute ampullacea W�rheide & Hooper 2003
- Ute argentea
- Ute argentea Polej.
- Ute argentea Polejaeff 1884
- Ute argentea Poléjaeff, 1883
- Ute argentea Pol�jaeff 1883
- Ute armata
- Ute armata Hozawa
- Ute armata Hozawa 1929
- Ute armata Hozawa, 1929
- Ute capillosa
- Ute capillosa Schmidt
- Ute capillosa Schmidt 1862
- Ute capillosa Schmidt, 1862
- Ute chrysalis
- Ute chrysalis Schmidt 1864
- Ute chrysalis Schmidt, 1864
- Ute Chun 1889
- Ute crambessa
- Ute Dendy & Row 1913
- Ute Dendy & Row, 1913
- Ute ensata
- Ute ensata (Bate, 1857)
- Uthakkara Argaman 1996
- Utharocrinus
- Utharocrinus creadensis
- Utharocrinus fabulosus
- Utharocrinus granulosus
- Utharocrinus granulosus Strimple 1939
- Utharocrinus Moore & Plummer 1937
- Utharocrinus sp.
- Utharomyces
- Utharomyces Boedijn
- Utharomyces Boedijn 1959
- Utharomyces Boedijn, 1959
- Utharomyces epallocaulus
- Utharomyces epallocaulus Boedijn
- Utharomyces epallocaulus Boedijn 1959
- Utharomyces epallocaulus Boedijn ex P. M. Kirk & Benny 1980
- Utharomyces epallocaulus Boedijn ex P.M. Kirk & Benny
- Utharomyces epallocaulus Boedijn ex P.M. Kirk & Benny 1980
- Utharomyces indicus
- Utharomyces indicus "A.K. Sarbhoy
- Utharomyces indicus A. K. Sarbhoy, S. M. Singh & D. K. Agarwal 1974
- Utharomyces indicus A.K. Sarbhoy, S.M. Singh & D.K. Agarwal
- Utharomyces indicus A.K. Sarbhoy, S.M. Singh & D.K. Agarwal 1974
- Utharomyces indicus A.K.Sarbhoy, S.N.Singh & D.K.Agarwal 1974
- Utharomyces indicus A.K.Sarbhoy, S.N.Singh & D.K.Agarwal, 1974
- Uthatobasidium
- Uthatobasidium citriforme
- Uthatobasidium citriforme M. P. Christ. 1959
- Uthatobasidium citriforme M.P. Christ.
- Utia ? appalachia
- Utia ? appalachia Resser 1938
- Utia curio
- Utia curio Walcott 1924
- Utia Walcott
- Utia WALCOTT 1924
- Utiadae
- Utianae
- Utianae Kobayashi 1935
- Utiarichthys
- Utiarichthys sennaebragai
- Utiarichthys sennaebragai Miranda Ribeiro 1937
- Utiarichthys sennaebragai Miranda Ribeiro, 1937
- Utiarichthys sennaebragai Miranda-Ribeiro 1937
- Utiarichthys sennaebragai Miranda-Ribeiro, 1937
- Utiaritichthys
- Utiaritichthys longidorsalis
- Utiaritichthys longidorsalis Jégu, Tito de Morais & dos Santos 1992
- Utiaritichthys longidorsalis Jégu, Tito de Morais & dos Santos 1992 sec. Eschmeyer 2004
- Utiaritichthys longidorsalis Jégu, Tito de Morais & dos Santos, 1992
- Utiaritichthys longidorsalis Jegu, Tito de Morais & Mendes dos Santos 1992
- Utiaritichthys longidorsalis Jégu, Tito de Morais & Santos, 1992
- Utiaritichthys longidorsalis Jégu, Tito de Morais and dos Santos, 1992
- Utiaritichthys longidorsalis Jégu, Tito de Morais, & Mendes dos Santos, 1992
- Utiaritichthys longidorsalis Jégu, Tito de Morais, & Santos, 1992
- Utiaritichthys longidorsalis J�gu, Tito de Morais & Santos 1992
- Utiaritichthys Miranda Ribeiro 1937
- Utiaritichthys Miranda Ribeiro, 1937
- Utiaritichthys Miranda-Ribeiro 1937
- Utkalia S. Chandra 1984
- Utkalia S. Chandra, 1984
- Utkholokia
- Utkholokia I. A. Iljinskaja et A. I. Chelebaeva, 2002
- Utkholokia I.A. Iljinskaja & A.I. Chelebaeva 2002
- Utleria Bedd. ex Benth.
- Utleria Bedd. ex Benth. & Hook. f.
- Utleria Bedd. ex Benth. & Hook.f.
- Utleria Beddome ex Bentham & J.D. Hooker 1876
- Utleria Beddome ex Bentham et J. D. Hooker, 1876
- Utleria salicifolia
- Utleria salicifolia Bedd. ex Hook. f.
- Utleria salicifolia Bedd. ex Hook.f.
- Utleya
- Utleya costaricensi
- Utleya costaricensi Wilbur & Luteyn
- Utleya costaricensis
- Utleya costaricensis Wilbur & Luteyn
- Utleya costaricensis Wilbur & Luteyn, 1977
- Utleya R. L. Wilbur et J. L. Luteyn in J. L. Luteyn et R. L. Wilbur, 1977
- Utleya R.L. Wilbur & J.L. Luteyn in J.L. Luteyn & R.L. Wilbur 1977
- Utleya Wilbur & Luteyn
- Utobium elegans
- Utobium elegans (Horn 1894)
- Utobium elegans (Horn, 1894)
- Utobium elegans Horn
- Utobium Fall 1905
- Utobium Fall, 1905
- Utobium granulatum
- Utobium granulatum White 1976
- Utobium granulatum White, 1976
- Utobium griseum
- Utobium griseum White
- Utobium griseum White 1966
- Utobium griseum White, 1966
- Utobium marmoratum
- Utobium marmoratum Fisher
- Utobium marmoratum Fisher 1939
- Utobium marmoratum Fisher, 1939
- Utoceras
- Utoceras Ulrich Foerste & Miller, 1943
- Utoceras Ulrich, Foerste & Miller 1943
- Utocinelus
- Utoiulus
- Utoiulus Chamberlin 1912
- Utoiulus Chamberlin 1943
- Utoiulus Chamberlin, 1943
- Utoiulus Ghamberlin 1943
- Utoiulus leechi
- Utolineides
- Utolineides alba
- Utra Jordan 1895
- Utra nitida
- Utra nitida Jordan 1895
- Utra nitida Jordan, 1895
- Utralvoherpia
- Utralvoherpia abyssalis
- Utralvoherpia abyssalis Salvini-Plawen, 1978
- Utralvoherpia abyssalis von Salvini-Plawen 1978
- Utralvoherpia Salvini-Plawen 1978
- Utralvoherpia Salvini-Plawen 1979
- Utralvoherpia von Salvini-Plawen 1978
- Utraria
- Utraria (Quélet)
- Utraria (Quélet) Jeppson & E. Larsson 2007
- Utraria dermoxantha
- Utraria dermoxantha Quél.
- Utraria dermoxantha Quél. 1886
- Utraria dermoxantha Qu�l. 1886
- Utraria echinata
- Utraria echinata Quél.
- Utraria excipuliformis
- Utraria excipuliformis Quél.
- Utraria furfuracea
- Utraria furfuracea Quél.
- Utraria gemmata
- Utraria gemmata Quél.
- Utraria gemmata Quél. 1873
- Utraria hirta
- Utraria hirta Quél.
- Utschamiella
- Utschamiella babikamensis
- Utschamiella dakangensis
- Utschamiella dakangensis Ma 1974
- Utschamiella elliptica
- Utschamiella elliptica Hua 1965
- Utschamiella elliptica tongchuanensis
- Utschamiella elliptica var. tongchuanensis Hua 1965
- Utschamiella longa
- Utschamiella longa Hua 1965
- Utschamiella lufengensis
- Utschamiella lufengensis Ma 1976
- Utschamiella Lumkevich et al 1960
- Utschamiella Lutkevich, Nalivikin et al 1960
- Utschamiella mashipingensis
- Utschamiella mashipingensis Zhang 1978
- Utschamiella mianchiensis
- Utschamiella mianchiensis Zhang 1977
- Utschamiella mianchiensis Zhang 1978
- Utschamiella nanzhaoensis
- Utschamiella nanzhaoensis Zhang 1978
- Utschamiella obrutschevi
- Utschamiella Raghozin 1938
- Utschamiella takelakeensis
- Utschamiella takelakeensis Wei 1984
- Utsetela
- Utsetela gabonensis
- Utsetela gabonensis Pellegr.
- Utsetela gabonensis Pellegrin
- Uttaris pallidipennis (Stål,1858)
- Uttaris Stål 1874
- Utterbachia
- Utterbachia Baker 1927
- Utterbackia
- Utterbackia (Baker )
- Utterbackia (Baker)
- Utterbackia Baker 1927
- Utterbackia Baker1927
- Utterbackia Frierson, 1927
- Utterbackia heardi
- Utterbackia heardi (Gordon & Hoch 1995)
- Utterbackia imbeccilus
- Utterbackia imbecilis
- Utterbackia imbecillis
- Utterbackia imbecillis (Say 1829)
- Utterbackia imbecillis (Say, 1829)
- Utterbackia imbecillus
- Utterbackia ohieneis (Raf. )
- Utterbackia ohiensis
- Utterbackia ohiensis (Rafinesque )
- Utterbackia peggyae
- Utterbackia peggyae (Johnson 1965)
- Utterbackia peggyae (R. I. Johnson 1965)
- Utterbackia peggyae (R. I. Johnson, 1965)
- Utterbackia peninsularis
- Utterbackia peninsularis Bogan & Hoeh 1995
- Utterbackia peninsularis Bogan and Hoeh 1995
- Utterbackia peninsularis Bogan and Hoeh, 1995
- Utubius
- Utubius syriacus
- Utubius syriacus (Bolivar, I. 1893)
- Utubius syriacus (Bolivar, I., 1893)
- Utubius syriacus Boliv.
- Utubius syriacus subsp. syriacus
- Utubius syriacus subsp. syriacus (Bolivar, I. 1893)
- Utubius syriacus subsp. zahrae
- Utubius syriacus subsp. zahrae Uvarov 1936
- Utubius syriacus syriacus
- Utubius syriacus syriacus (Bolivar, I. 1893)
- Utubius syriacus syriacus (Bolivar, I., 1893)
- Utubius syriacus zahrae
- Utubius syriacus zahrae Uvarov 1936
- Utubius syriacus zahrae Uvarov, 1936
- Utubius syriacus zahrae Uvarov, B. P., 1936
- Utubius Uvarov 1936
- Utubius zahrae
- Utubius zahrae Uv.
- Utubius zahrae Uvarov 1936
- Utuca
- Utuca calycospila
- Utuca calycospila Meyrick 1932
- Utuca ochracealis
- Utuca ochracealis Walker 1864
- Utuca ochracealis Wkr.
- Utuca prometopa
- Utuca prometopa Meyrick 1909
- Utuca testacea
- Uukuniemi virus EgAN 1825-61 virus ICTV
- Uukuniemi virus Fin V 707 virus ICTV
- Uukuniemi virus Grand Arbaud virus ICTV
- Uukuniemi virus ICTV
- Uukuniemi virus Manawa virus ICTV
- Uukuniemi virus Murre virus ICTV
- Uukuniemi virus Oceanside virus ICTV
- Uukuniemi virus Ponteves virus ICTV
- Uukuniemi virus Precarious Point virus ICTV
- Uukuniemi virus RML 105355 virus ICTV
- Uukuniemi virus St. Abbs Head virus ICTV
- Uukuniemi virus Tunis virus ICTV
- Uukuniemi virus Zaliv Terpeniya virus ICTV
- [[Uukuniemi virus {L: [D10759] {M: [M17417] {S: [M33551] Uukuniemi virus - S 23 ICTV]]
- Uusitaloia Marusik, Koponen & Danilov 2001
- Uusitaloia transbaicalica
- Uusitaloia transbaicalica Marusik, Koponen & Danilov 2001
- Uusitaloia transbaicalica Marusik, Koponen & Danilov, 2001
- uva (Linnaeus 1758)
- uva (Linnaeus)
- uva (R�ding 1798)
- Uva acuminata
- Uva acuminata (Oliv. ) Kuntze
- Uva acuminata (Oliv.) Kuntze
- Uva acuminata Kuntze
- Uva angolensis
- Uva angolensis Kuntze
- Uva angustifolia
- Uva angustifolia (Engl. & Diels) Kuntze
- Uva angustifolia Kuntze
- Uva argentea
- Uva argentea Kuntze
- Uva aurita
- Uva aurita Kuntze
- Uva baumannii
- Uva baumannii Kuntze
- Uva bipindensis
- Uva bipindensis Kuntze
- Uva bracteata
- Uva bracteata Kuntze
- Uva brasiliensis
- Uva brasiliensis (Vell.) Kuntze
- Uva brasiliensis Kuntze
- Uva buchholzii
- Uva buchholzii Kuntze
- Uva caffra
- Uva caffra Kuntze
- Uvea Fauvel 1881
- Uvea Fauvel 1882
- Uvedalia
- Uvedalia linearis
- Uvedalia linearis R.Br.
- Uvedalia nana
- Uvedalia nana E.Mey. ex Benth.
- Uvedalia R. Br.
- Uvedalia R. Brown 1810
- Uvedalia R. Brown, 1810
- Uvedalia R.Br.
- Uvelinus
- Uvelinus (Nenninger, 1948) Jankowski, 1985
- Uvelinus biseriatus
- Uvelinus biseriatus (Sommer 1950)
- Uvelinus Jankowski 1985
- Uvella
- Uvella applicata
- Uvella applicata Dumas 1930
- Uvella bodo
- Uvella bodo Ehr.
- Uvella Bory de St Vincent 1827
- Uvella Bory de St.-Vincent, 1824
- Uvella chamaemora
- Uvella chamaemora Bory de St. -Vincent
- Uvella chamaemora Bory de St.-Vincent
- uvella Ehrenberg 1834
- Uvella fimbriata
- Uvella fimbriata Dumas 1930
- Uviella Ganelina 1966
- Uviella Ganelina, 1966
- uvifer
- Uvifera
- uvifera (C. Agardh) Areschoug 1854
- uvifera (C. Agardh) J. Agardh 1873
- uvifera (Forssk�l) B�rgesen 1932
- uvifera (Turn.) Web. V. B.
- Uvifera acrostichodes
- Uvifera acrostichodes Kuntze
- Uvifera acuminata
- Uvifera acuminata Kuntze
- Uvifera alagoensis
- Uvifera alagoensis Kuntze
- Uvifera armata
- Uvifera armata Kuntze
- Uvifera ascendens
- Uvifera ascendens Kuntze
- Uvifera barbadensis
- Uvifera barbadensis Kuntze
- Uvifera barbeyana
- Uvifera barbeyana Kuntze
- Uvifera billbergii
- Uvifera billbergii (Lindau) Kuntze
- Uvifera billbergii Kuntze
- Uvifera blanchetiana
- Uvifera blanchetiana Kuntze
- Uvifera bracteolosa
- Uvifera bracteolosa Kuntze
- uvoides Bory
- uvongoensis Massier 2004
- Uvonhachtia
- Uvonhachtia ramosa harpago
- Uvonhachtia ramosa harpago Schallreuter 1990
- Uvonhactia
- Uvonhactia botulata
- Uvonhactia botulata Schallreuter 1988
- Uvonhactia Schallreuter 1988
- Uvothalamia
- Uvothalamia planiinvoluta
- Uvothalamia planiinvoluta Senowbari-Daryan 1990
- Uvothalamia Senowbari-Daryan 1990
- Uvulana
- Uvulana angulata
- Uvulana angulata Raf.
- Uvulana Raf.
- Uvularia
- Uvularia acutifolia
- Uvularia acutifolia Raf.
- Uvularia amplexicaulis
- Uvularia amplexicaulis Mill.
- Uvularia amplexifolia
- Uvularia amplexifolia L.
- Uvularia betua
- Uvularia betua Buch.-Ham. ex D.Don
- Uvularia calcarata
- Uvularia calcarata Wall.
- Uvularia carolina
- Uvularia carolina (J. F. Gmel.) Wilbur
- Uvularia carolina (J.F. Gmel.) Wilbur
- Uvularia caroliniana
- Uvularia caroliniana (J.F. Gmel.) Wilbur
- Uvularia caroliniana (J.F.Gmel.) Wilbur
- Uvularia chinensis
- Uvularia chinensis Ker Gawl.
- Uvularia cirrhosa
- Uvularia cirrhosa Thunb.
- Uvularia cirrhosa Thunb. ex A.Murray
- Uvularia distorta
- Uvularia distorta (Michx.) Pers.
- Uvularia distorta Pers.
- Uwarowia
- Uwarowia Bunge
- Uwarowia Bunge 1840
- Uwarowia Bunge, 1840
- Uwarowia chrysanthemifolia
- Uwarowia chrysanthemifolia Bunge
- Uwarowia sulphurea
- Uwarowia sulphurea Schauer
- Uwebraunia Crous & M.J. Wingf. 1996
- Uwebraunia Crous & M.J. Wingfield 1996
- Uwebraunia Crous & M.J.Wingf.
- Uwebraunia ellipsoidea
- Uwebraunia ellipsoidea Crous & M. J. Wingf. 1996
- Uwebraunia ellipsoidea Crous & M.J. Wingf.
- Uwebraunia ellipsoidea Crous & M.J. Wingf. 1996
- Uwebraunia juvenis
- Uwebraunia juvenis Crous & M. J. Wingf. 1996
- Uwebraunia juvenis Crous & M.J. Wingf.
- Uwebraunia juvenis Crous & M.J. Wingf. 1996
- Uwebraunia lateralis
- Uwebraunia lateralis Crous & M. J. Wingf. 1996
- Uwebraunia lateralis Crous & M.J. Wingf.
- Uwebraunia lateralis Crous & M.J. Wingf. 1996
- Uwebraunia P. W. Crous et M. J. Wingfield, 1996
- Uxa clariscapus
- Uxa clariscapus (Dodd 1917)
- Uxa clariscapus (Dodd, 1917)
- Uxa Girault 1930
- Uxacalcaraea
- Uxacalcaraea Alloiteau 1952
- Uxacalcaraea heberti
- Uxacalcaraea heberti Alloiteau 1952
- Uxacalcaraea heberti Alloiteau 1957
- Uxacalcaraea micraxon
- Uxacalcaraea montsecana
- Uxacalcaraea montsecana Reig Oriol 1992
- Uxacalcaraea uxacalcensis
- Uxacalcaraea uxacalcensis Alloiteau 1957
- Uxantis
- Uxantis bipunctata
- Uxantis bipunctata Schmidt 1928
- Uxantis bipunctata Schmidt, 1928
- Uxantis bipunetata
- Uxantis bipunetata Schmidt 1928
- Uxantis consputa (Stål, 1870)
- Uxantis consputa (St�l 1870)
- Uxantis elongata
- Uxantis elongata Melichar 1902
- Uxantis elongata Melichar, 1902
- Uxantis illota
- Uxantis illota Melichar 1902
- Uxantis illota Melichar, 1902
- Uxantis nexa
- Uxela Walker 1866
- [[Uxia (Uxia) [Jouss 1887 non Walker 1866]]]
- Uxia ? marthalli Allan 1926
- Uxia bruxelliensis
- Uxia bruxelliensis Leriche 1922
- Uxia costulata
- Uxia elongata
- Uxia elongata (Nyst, 1843)
- Uxia elongata Cuvillier 1935
- Uxia fornicis
- Uxia fornicis Wrigley 1935
- Uxia gailleti
- Uxia gailleti Cossmann 1913
- Uxia granulata
- Uxia granulata (Nyst, 1843)
- Uxia Jousseaume 1887
- Uxia marshalli
- Uxia marshalli Allan 1926
- Uxia miocaenica
- Uxia miocaenica Cossmann 1913
- Uxia narica
- Uxia narica Vredenburg 1925
- Uxia naroniformis
- Uxia naroniformis Finlay 1930
- Uxia nassaeformis
- Uxia nassaeformis Wrigley 1925
- Uxia pyramidum
- Uxia pyramidum Cuvillier 1933
- Uxia ringens
- Uxia ringens (Sandberger 1859)
- Uxopoda Lucas 1849
- Uxoriousauria
- Uxoriousauria Wells & Wellington 1985
- uxoris Dinet 1978
- uxoris Por 1983
- uxorius Herre 1935
- uxorius King 1855
- Uxuma impudica
- Uxuma impudica Simon 1902
- Uxuma impudica Simon, 1902
- Uxuma Simon 1902
- Uxunella
- Uxunella explicata
- Uxunella explicata Gogin & Pegel 1995
- Uxunella gloriosa
- Uxunella gloriosa Romanenko 1985
- Uxunella plana
- Uxunella plana Romanenko 1985
- Uxunella ROMANENKO 1985
- uyato Rafinesque 1810
- uyatus (Rafinesque 1810)
- Uydenia Kazantseva Selezneva 1980
- Uydenia Kazantseva-Selezneva 1980
- Uydenia latifrons
- Uydenia latifrons Kazantseva-Selezneva 1980
- Uydenichthys
- Uydenichthys Kazantseva Selezneva 1880
- Uydenichthys Kazantseva-Selezneva 1880
- Uydenichthys Kazantseva-Selezneva 1980
- Uydenichthys magnus
- Uydenichthys magnus Kazantseva-Selezneva 1980
- Uydeniidae Kazantseva-Selentseva 1981
- Uydeniidae Kazantseva-Selezneva 1980
- Uyenoa benedeni
- Uyenoa benedeni (le Hon 1871)
- Uyenoa Kuga 1985
- Uyenognathus
- Uyenognathus Savage 2004
- Uyenognathus sinuosus
- Uyenognathus sinuosus (Szulczewski 1971)
- Uyenognathus wadleighensis
- Uyenognathus wadleighensis (Savage 1987)
- Uyguroblastus conicus
- Uyguroblastus conicus Lane, Waters & Maples 1997
- Uyguroblastus Lane, Waters & Maples 1997
- Uyigerina indica
- Uyigerina indica Tewari & Bhargava 1964
- Uyigerina taurica
- Uyigerina taurica Morozova, Kozhevnikova & Kuryleva 1967
- uyii Wakiya & Ishikawa 1921
- Uylyaichthys eugeniae
- Uylyaichthys eugeniae Prokofiev 2002
- Uylyaichthys Prokofiev 2002
- Uypena conspersalis Bryk 1948
- Uysanus bistigma
- Uysanus bistigma Medler 1988
- Uysanus bistigma Medler, 1988
- Uysanus bistigmus
- Uysanus bistigmus Medler 1988
- Uysanus cameroni
- Uysanus cameroni Distant 1910
- Uysanus cameroni Distant, 1910
- Uysanus daxans
- Uysanus daxans Fennah 1988
- Uysanus daxans Fennah, 1988
- Uysanus daxans Medler 1988
- Uysanus Distant 1908
- Uysanus errans
- Uysanus errans (Fennah 1957)
- Uysanus errans (Fennah 1958)
- Uysanus errans (Fennah, 1957)
- Uysanus eumaea
- Uysanus eumaea (Fennah 1957)
- Uysanus eumaea (Fennah, 1957)
- Uysanus eumaeus
- Uysanus eumaeus (Fennah 1957)
- Uysanus eumaeus (Fennah 1958)
- Uysanus eumaeus (Fennah, 1957)
- Uysanus fluctuans
- Uysanus fluctuans Distant 1908
- Uysanus fluctuans Distant, 1908
- Uysanus lestagei
- Uysanus lestagei Lallemand 1929
- Uytenbogartia cribricollis (Brulle,1838)
- Uytenbogartia inaequalis (Wollaston,1864)
- Uytenbogartia punctipennis (Wollaston,1864)
- Uytteboogaartia cribricollis
- Uytteboogaartia cribricollis Brullé, 1838
- Uytteboogaartia punctipennis
- Uytteboogaartia punctipennis Wollaston, 1864
- Uyttenboogaartia
- Uyttenboogaartia cribricollis
- Uyttenboogaartia cribricollis (Brullé 1838)
- Uyttenboogaartia inaequalis
- Uyttenboogaartia inaequalis (Wollaston 1864)
- Uyttenboogaartia Koch 1943
- Uyttenboogaartia punctipennis
- Uyttenboogaartia punctipennis (Wollaston 1864)
- Uyttnboogaartia
- Uyttnboogaartia Koch 1943
- Uyucamyces H. C. Evans et D. W. Minter, 1985
- Uyucamyces H.C. Evans & Minter 1985
- Uyucamyces parasiticus
- Uyucamyces parasiticus H. C. Evans & Minter 1985
- Uyucamyces parasiticus H.C. Evans & Minter
- Uyucamyces parasiticus H.C. Evans & Minter 1985
- Uzagaria Ancey 1881
- Uzagaria Ancey CF 1881
- Uzagaria major
- Uzagaria major Fairmaire 1887
- Uzagaria pubens
- Uzagaria pubens Ancey 1881
- Uzakia
- Uzakia Kocak & Kemal 2008
- Uzakia unica
- Uzakia unica (Forster 1970)
- Uzamakiella natalensis
- Uzamakiella natalensis Kilburn 1977
- Uzbekaphis Mordvilko 1929
- Uzbekbaatar
- Uzbekbaatar Kielan-Jaworowka & Nessov 1992
- Uzbekbaatar kisylkumensis
- Uzbekbaatar kizylkumensis
- Uzbekbaatar kizylkumensis Kielan-Jaworowka & Nessov 1992
- Uzbekbaatar kizylkumensis Kielan-Jaworowska & Nessov 1992
- Uzbekbaatar wardi
- Uzbekbaatar wardi Averianov 1999
- Uzbekia
- Uzbekia Rohdendorf, 1934
- Uzbekistania charoides profunda
- Uzbekistania charoides profunda Saidova 1975
- uzboicus Berg 1932
- Uzeda Walker 1863
- Uzela
- Uzela Walker 1866
- Uzeldikra
- Uzeldikra citrina
- Uzeldikra citrina (Melichar 1903)
- Uzeldikra citrina (Melicher 1903)
- Uzeldikra Dworakowska (September) 1971
- Uzeldikra Dworakowska 1971
- Uzeldikra grisea
- Uzeldikra grisea Dworakowska 1979
- Uzeldikra longiprocessa
- Uzeldikra longiprocessa Zhang & Kang 2007
- Uzelia
- Uzelia (Paruzelia)
- Uzelia (Paruzelia) badakschanica Martynova 1971
- Uzelia (Paruzelia) furcata
- Uzelia (Paruzelia) furcata mongolica Martynova 1975
- Uzelia (Paruzelia) kondarensis Martynova 1971
- Uzelia (Paruzelia) Martynova 1971
- Uzelia (Paruzelia) tadzhika Martynova 1971
- Uzelia Absol.
- Uzelia Absolon 1901
- Uzelia Absolon, 1901
- Uzelia annomatos
- Uzelia annomatos Yue & Yin 1999
- Uzelia annomatos Yue & Yin, 1999
- Uzelia anommatos
- Uzelia anommatos Yue & Yin 1999
- Uzinia hyas
- Uzinia hyas Schaus 1913
- Uzinia Schaus 1913
- Uzita
- Uzita Adams 1853
- Uzita anisonema
- Uzita arnoldi
- Uzita beberkirianus (Martin, 1906)
- Uzita berthae
- Uzita bidentata
- Uzita bimitrodita
- Uzita caloosaensis
- Uzita caloosaensis cornelliana
- Uzita caloosaensis cornelliana (Olsson 1914)
- Uzita cercadensis
- Uzita chowanensis
- Uzita chowanensis Gardner 1948
- Uzita cinclis
- Uzita consensoides
- Uzita cystoides
- Uzita dalli
- Uzita dasa
- Uzita dasynema
- Uzita dasynema cesta
- Uzita dasynema cesta Gardner 1937
- Uzita dryas
- Uzita dystakta
- Uzita entykta
- Uzita eutykta
- Uzka bethyloides
- Uzka bethyloides Boucek
- Uzka bethyloides Boucek 1988
- Uzka bethyloides Boucek, 1988
- Uzka Boucek 1988
- Uzkini
- Uzkini Boucek 1988
- Uzomathis dissensa
- Uzomathis dissensa Schaus 1916
- Uzomathis Schaus 1916
- Uzucha borealis
- Uzucha borealis Turner 1897
- Uzucha humeralis
- Uzucha humeralis Walker 1864
- Uzucha hypoxantha
- Uzucha hypoxantha Lower 1894
- Uzucha Walker 1864
- Uzucha xanthopsis
- Uzucha xanthopsis Turner 1897
- Uzumakiella
- Uzumakiella Habe 1958
- Uzumakiella japonica
- Uzumakiella japonica Habe 1958
- Uzumakiella parvulum
- Uzunbulakia
- Uzunbulakia Nikitina, Popov, Neuman, Bassett & Holmer 2006
- Uzunbulakia rugosa
- Uzunbulakia rugosa Nikitina, Popov, Neuman, Bassett & Holmer 2006
- Uzunbulaklepis
- Uzunbulaklepis obruchevi
- Uzunbulaklepis obruchevi Vorobyeva & Panteleyev 2005
- Uzunbulaklepis Vorobyeva & Panteleyev 2005
- Uzunmehmedisporites
- Uzunmehmedisporites Y. Konyali in B. Agrali & Y. Konyali 1969
- Uzunmehmedisporites Y. Konyali in B. Agrali et Y. Konyali, 1969
- Uzza Distant 1909
- Uzza karenia
- Uzza karenia Distant 1909
- Uzzia
- Uzzia cotera
- Uzzia cotera Johnson 1991
- Uzzia Johnson 1991
- Uzzia splendor
- Uzzia splendor Johnson 1991