Argyropeza
| Argyropeza | |
|---|---|
| |
| (Melvill & Standen, 1901) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Family: | Procerithiidae |
| Genus: | Argyropeza |
| Type species | |
| Argyropeza divina Melvill & Standen, 1901
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| Species | |
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See text | |
Argyropeza is a
The name of this genus is derived from the Greek word arguropeza ("silver foot"), the epithet given by Homer to the sea nymph Thetis.
Taxonomy
The genus Argyropeza is closely related to the genus Bittium, but the shells of species in this genus are thinner and more vitreous, and the suture is more deeply impressed.
This genus is not well known and its systematic position has long been uncertain. It was sometimes assigned to the Litiopidae Gray, 1847 or to the Cerithiinae within Cerithiidae,[3] both belonging to the same superfamily Cerithioidea.
The genus was moved to Procerithiidae because of its similarity to the fossil genus Crypaulax from the Triassic.[4] This move means that the Argyropeza species are now considered to be living fossils.[4]
According to the Taxonomy of Bouchet & Rocroi (2005) Argyropeza is in the subfamily Cryptaulacinae, within the Procerithiidae.
According to Bandel (2006)[5] Argyropeza is in the newly described subfamily Argyropezinae Bandel, 2006, within the Procerithiidae.[5]
Distribution
The snails of this deep-sea genus can be found on the continental slopes and island groups in the Indo-Pacific region (Arabian Sea, Australia, Fiji, Indonesia, Japan, Papua, New Guinea, Vanuatu and South Africa).[3] They are detritivores, obtaining their nutrients from detritus and soft sediment.[3]
Description
They are small snails (6 to 8 mm in length) with a thin, vitreous shell that is elongated and has a pointed spire with a smooth tip. The number of the whorls varies between 9 and 12. The shell is sculptured with low axial ribs. Each whorl is marked by two spiral ribs with sharp nodules. The ovate aperture has a marked siphonal canal and a weak anal canal. The aperture is closed off by a thin, corneous, cerithioid operculum that is multispiral and almost circular. The outer lip is thin. The columella is concave. Their protoconch has 3½ whorls and are sculptured with two spiral lirae.[3]
Until the study of
Species
Species within the genus Aryropeza include:
- Argyropeza divina Melvill & Standen, 1901
- Argyropeza izekiana Kuroda, 1949
- Argyropeza leucocephalum (Watson, 1886)
- Argyropeza schepmaniana Melvill, 1912
- Argyropeza verecunda Melvill & Standen, 1903
- Synonyms
- Argyropeza cartieri Hornung & Mermod, 1928: synonym of Phosinella cartieri (Hornung & Mermod, 1928)
- Argyropeza doriae Hornung & Mermod, 1926: synonym of Pirenella conica(Blainville, 1829)
- Argyropeza involuta Thiele, 1925: synonym of Varicopeza pauxilla (A. Adams, 1855) (original combination)
- Argyropeza melvilli Schepman, 1909: synonym of Abyssochrysos melvilli (Schepman, 1909) (original combination)
- † Argyropeza suvaensis Ladd, 1977 : synonym of Abyssochrysos melvilli (Schepman, 1909)
References
- .
- ^ WoRMS (2010). Argyropeza Melvill & Standen, 1901. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=473011 on 2010-05-12
- ^ a b c d e f Houbrick R. S. (1980) "Review of the deep-sea genus Argyropeza (Gastropoda: Prosobranchia: Cerithiidae). Smithsonian contributions to zoology 321 Washington. http://si-pddr.si.edu/dspace/handle/10088/5557
- ^
- ^ a b Bandel K. (2006). "Families of the Cerithioidea and related superfamilies (Palaeo-Caenogastropoda; Mollusca) from the Triassic to the Recent characterized by protoconch morphology - including the description of new taxa". Freiberger Forschungshefte C 511: 59-138. PDF[permanent dead link].
External links
Media related to Argyropeza at Wikimedia Commons