Psalidodon brachypterygium
species of fish
Psalidodon brachypterygium is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish is endemic to a collection of high-elevation streams in Brazil. It was named in 2001 alongside congener Psalidodon cremnobates, to which it bears a strong resemblance; physical details (and a separate native range) help to differentiate between the two. Its scales are a greenish-brown on the back and silver on the belly, with reddish fins and a dark humeral spot. One of its defining features is a notably short anal-fin base, which has 13 to 15 rays.
It usually inhabits shallow waters with a good current, but little else of its ecology has been researched, including diet, behavior, and mating practices. Several species are known to live in peaceful sympatry with it. The IUCN has given P. brachypterygium a near threatened classification due to a decline in habitat quality, largely thanks to anthropogenic survival pressures.
Taxonomy
Psalidodon brachypterygium was first formally described as Astyanax brachypterygiumin 2001 by the Brazilian ichthyologists Vinicius Araújo Bertaco and Luiz R. Malabarba with its type locality given as Bom Jesus in the arroio Agua Branca at 28°36'S, 50°24'W in Rio Grande do Sul, Brazil from an elevation of 1,050 m (3,440 ft). This species is now classified in the genus Psalidodon which is classified in the subfamily Acestrorhamphinae which is the nominate subfamily of the American characin family Acestrorhamphidae.
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This entry incorporates text from “Psalidodon brachypterygium” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.