''Amblyceps carinatum'' is a species of

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, ...

belonging to the family

Amblycipitidae The Amblycipitidae are a family of catfishes, commonly known as torrent catfishes. It includes three genus, genera, ''Amblyceps'', ''Liobagrus'', and ''Xiurenbagrus'', and about 36 species. Taxonomy The family Amblycipitidae is a monophyly, mono ...

. It is only known from the upper part of the

Irrawaddy River The Irrawaddy River ( Ayeyarwady River; , , from Indic ''revatī'', meaning "abounding in riches") is a river that flows from north to south through Myanmar (Burma). It is the country's largest river and most important commercial waterway. Origi ...

basin in

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

. This is a small catfish (up to 36 mm

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...

) found in fast flowing streams. The main characteristic which distinguishes it from its congeners is the shape of the

adipose fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as s ...

: in ''A. carinatum'' it takes the form of a long low ridge starting just behind the

dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through conv ...

whilst in all other ''

Amblyceps ''Amblyceps'' is a genus of fish in the family Amblycipitidae.Ferraris, C.J.Jr. (2007)Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types.''Zootaxa, 1418: 1–628.'' The genera ''Ambly ...

'' species it is blade-shaped and starts well behind the dorsal fin.

References

Amblycipitidae Fish of Myanmar Endemic fauna of Myanmar Fish described in 2005 {{Catfish-stub