Brachyhypopomus is a genus of fish in the familyHypopomidae (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.[1][2] 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).[2] 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.[2][3]Brachyhypopomus feed during the night on small invertebrates.[2]
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.[1][2] 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.[2]
Speciesedit
There are currently 28 recognized species in this genus:[1]
Brachyhypopomus alberti Crampton, de Santana, Waddell & Lovejoy, 2016[2]
Brachyhypopomus arrayae Crampton, de Santana, Waddell & Lovejoy, 2016[2]
Brachyhypopomus batesi Crampton, de Santana, Waddell & Lovejoy, 2016[2]
^ abcFroese, Rainer and Pauly, Daniel, eds. (2017). Species of Brachyhypopomus in FishBase. June 2017 version.
^ abcdefghijklmnopqrstuCrampton, W.G.R., de Santana, C.D., Waddell, J.C. & Lovejoy, N.R. (2016): Clifford,W,J A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species. Neotropical Ichthyology, 14 (4): e150146.
^Carvalho, L.N.; L. Fidelis; R. Arruda; A. Galuch; K. Zuanon (2013). "Second floor, please: the fish fauna of floating litter banks in Amazonian streams and rivers". Neotrop. Ichthyol. 11 (1): 78–91. doi:10.1590/S1679-62252013000100010.
^ abSullivan, 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.
April 14, 2024
brachyhypopomus, genus, fish, family, hypopomidae, bluntnose, knifefish, native, primarily, tropical, subtropical, south, america, south, río, plata, basin, although, single, species, occidentalis, also, occurs, panama, costa, rica, they, found, wide, range, s. Brachyhypopomus is a genus of fish in the family Hypopomidae bluntnose knifefish native primarily to tropical and subtropical South America south to the Rio de la Plata Basin although a single species B occidentalis also occurs in Panama and Costa Rica 1 2 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 2 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 2 3 Brachyhypopomus feed during the night on small invertebrates 2 BrachyhypopomusScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ActinopterygiiOrder GymnotiformesFamily HypopomidaeGenus BrachyhypopomusMago Leccia 1994Type speciesRhamphichthys brevirostrisSteindachner 1868They 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 1 2 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 2 Species editThere are currently 28 recognized species in this genus 1 Brachyhypopomus alberti Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus arrayae Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus batesi Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus beebei L P Schultz 1944 Brachyhypopomus belindae Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus benjamini Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus bennetti Sullivan Zuanon amp Cox Fernandes 2013 4 Brachyhypopomus bombilla Loureiro amp A C Silva 2006 Brachyhypopomus brevirostris Steindachner 1868 Brachyhypopomus bullocki Sullivan amp Hopkins 2009 Brachyhypopomus cunia Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus diazae Fernandez Yepez 1972 Brachyhypopomus draco Giora L R Malabarba amp Crampton 2008 Brachyhypopomus flavipomus Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus gauderio formerly Brachyhypopomus pinnicaudatus Giora amp L R Malabarba 2009 Brachyhypopomus hamiltoni Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus hendersoni Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus janeiroensis W J E M Costa amp Campos da Paz 1992 Brachyhypopomus jureiae Triques amp Khamis 2003 Brachyhypopomus menezesi Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus occidentalis Regan 1914 Brachyhypopomus palenque Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus provenzanoi Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus regani Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus sullivani Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus verdii Crampton de Santana Waddell amp Lovejoy 2016 2 Brachyhypopomus walteri Sullivan Zuanon amp Cox Fernandes 2013 4 References edit a b c Froese Rainer and Pauly Daniel eds 2017 Species of Brachyhypopomus in FishBase June 2017 version a b c d e f g h i j k l m n o p q r s t u Crampton W G R de Santana C D Waddell J C amp Lovejoy N R 2016 Clifford W J A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus Ostariophysi Gymnotiformes Hypopomidae with descriptions of 15 new species Neotropical Ichthyology 14 4 e150146 Carvalho L N L Fidelis R Arruda A Galuch K Zuanon 2013 Second floor please the fish fauna of floating litter banks in Amazonian streams and rivers Neotrop Ichthyol 11 1 78 91 doi 10 1590 S1679 62252013000100010 a b Sullivan J P Zuanon J amp 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 Retrieved from https en wikipedia org w index php title Brachyhypopomus amp oldid 1200193324, wikipedia, wiki, book, books, library,
