Paralichthyidae

Source: Wikipedia, the free encyclopedia.

Large-tooth flounders
Pacific sanddab, Citharichthys sordidus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Pleuronectiformes
Suborder:
Pleuronectoidei
Family: Paralichthyidae
Chabanaud, 1937
Type genus
Paralichthys
Girard, 1858
Genera[1]

Ancylopsetta

Cephalopsetta

Citharichthys
Cyclopsetta
Etropus
Gastropsetta
Hippoglossina
Paralichthys
Pseudorhombus
Syacium
Tarphops
Tephrinectes
Thysanopsetta
Xystreurys

Large-tooth flounders or sand flounders are a family, Paralichthyidae, of

genera with a total of about 110 species. They lie on the sea bed on their right side; both eyes are always on the left side of the head, while the Pleuronectidae
usually (but not always) have their eyes on the right side of the head.

Bigeye flounder, Hippoglossina macrops

They are found in

Atlantic, Indian and Pacific Oceans.[3]

Dusky flounder, Syacium papillosum

Several species are important commercial and game fishes, notably the California halibut, Paralichthys californicus and the Pacific sanddab, Citharichthys sordidus.

Phylogenetic analyses have long indicated the non-monophyly of this family e.g.,[4] and two lineages have been consistently apparent. Termed groups, the two groups were named after genera: a Cyclopsetta group and a Pseudorhombus group (see summary in [5]). A formal description of Cyclopsettidae in 2019 created this family consisting of four genera: Cyclopsetta, Etropus, Citharichthys, and Syacium corresponding to the previously recognized Cyclopsetta group.[5] Molecular phylogenetic evidence indicates that Paralichthyidae in this sense is sister to Pleuronectidae and Cyclopsettidae is sister to Bothidae e.g.[6]

References

  1. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2012). "Paralichthyidae" in FishBase. October 2012 version.
  2. ^ "Paralichthyidae" World Register of Marine Species. Retrieved 2014-1-26.
  3. ISSN 1886-8134
    .
  4. ^ .
  5. .