• Source: 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. 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.
They are small to medium sized knifefish, reaching up to 12–46 cm (4.7–18.1 in) 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, 2013
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

Kata Kunci Pencarian:

• Hypopomidae
• Brachyhypopomus
• Brachyhypopomus walteri
• Brachyhypopomus bennetti
• Steatogenys elegans
• Electric fish
• Electroreception and electrogenesis
• Hypopomidae
• Microsternarchus
• Batesian mimicry
• List of fishes of the Magdalena River