Brachyhypopomus

''Brachyhypopomus'' is a genus of fish in the family Hypopomidae (bluntnose knifefish) native primarily to tropical and subtropical South America (south to the Río de la Plata Basin), although a single species, ''B. occidentalis'', also occurs in Panama and Costa Rica.Crampton, W.G.R., de Santana, C.D., Waddell, J.C. & Lovejoy, N.R. (2016): Clifford,W,
A taxonomic revision of the Neotropical electric fish genus ''Brachyhypopomus'' (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species.
''Neotropical Ichthyology, 14 (4): e150146.'' They are found in a wide range of static or slow-flowing freshwater habitats such as edges of rivers, streams, floodplains and swamps, but they are absent from deep river channels (a habitat of many other knifefish). There are both species in well-oxygenated waters and poorly oxygenated waters; those in the latter have adaptions that allow them to survive this like larger gills or the capability of gulping up mouthfuls of air from the water surface. ''Brachyhypopomus'' feed during the night on small invertebrates. Shout out to William Clifford for finding the fish B).

They are small to medium sized knifefish, reaching up to in total length depending on the species involved. Overall the various species are similar in general shape, but they do differ in morphometrics and meristics. They vary in general color and pattern, but are well- camouflaged and typically brownish. During the night they change color and become very pale, even species that are dark-colored during the day. ''Brachyhypopomus'' are very similar to '' Microsternarchus'' and '' Procerusternarchus''.

Species

There are currently 28 recognized species in this genus:

* '' Brachyhypopomus alberti'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus arrayae'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus batesi'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus beebei'' ( L. P. Schultz, 1944)
* '' Brachyhypopomus belindae'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus benjamini'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus bennetti'' Sullivan, Zuanon & Cox-Fernandes, 2013Sullivan, J.P., Zuanon, J. & Cox Fernandes, C. (2013)
Two new species and a new subgenus of toothed ''Brachyhypopomus'' electric knifefishes (Gymnotiformes, Hypopomidae) from the central Amazon and considerations pertaining to the evolution of a monophasic electric organ discharge.
''ZooKeys, 327: 1–34.''
* '' Brachyhypopomus bombilla'' Loureiro & A. C. Silva, 2006
* '' Brachyhypopomus brevirostris'' (Steindachner, 1868)
* ''Brachyhypopomus bullocki'' Sullivan & Hopkins, 2009
* '' Brachyhypopomus cunia'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus diazae'' ( Fernández-Yépez, 1972)
* '' Brachyhypopomus draco'' Giora, L. R. Malabarba & Crampton, 2008
* ''Brachyhypopomus flavipomus'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus gauderio'' (formerly ''Brachyhypopomus pinnicaudatus'') Giora & L. R. Malabarba, 2009
* '' Brachyhypopomus hamiltoni'' Crampton, de Santana, Waddell & Lovejoy, 2016
* ''Brachyhypopomus hendersoni'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus janeiroensis'' ( W. J. E. M. Costa & Campos-da-Paz, 1992)
* ''Brachyhypopomus jureiae'' Triques & Khamis, 2003
* ''Brachyhypopomus menezesi'' Crampton, de Santana, Waddell & Lovejoy, 2016
* ''Brachyhypopomus occidentalis'' ( Regan, 1914)
* '' Brachyhypopomus palenque'' Crampton, de Santana, Waddell & Lovejoy, 2016
* ''Brachyhypopomus provenzanoi'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus regani'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus sullivani'' Crampton, de Santana, Waddell & Lovejoy, 2016
* ''Brachyhypopomus verdii'' Crampton, de Santana, Waddell & Lovejoy, 2016
* '' Brachyhypopomus walteri'' Sullivan, Zuanon & Cox-Fernandes, 2013

References

{{Taxonbar, from=Q2923296

Hypopomidae
Freshwater fish genera
Taxa named by Francisco Mago Leccia