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Heptapteridae
The Heptapteridae, or three-barbeled catfishes, are a family of catfish that originate from the Americas. Most species are restricted to South America, but '' Imparfinis lineatus'', '' Nemuroglanis panamensis'' and ''Pimelodella chagresi'' are native to Panama, and '' Rhamdia'' species occur as far north as Mexico. The name Heptapteridae is derived from Greek, ''hepta'' meaning seven and ''pteron'' meaning fin. The diversity of this family is poorly known, and many species are yet to be described. So far, some 211 species have been described. This family is equivalent to the previously recognized Rhamdiinae, a subfamily of the family Pimelodidae. However, molecular evidence shows this family is a part of the superfamily Pimelodoidea along with the Pimelodidae, Pseudopimelodidae, and '' Conorhynchos''. The skin of these fish is usually naked (scaleless). They exhibit three pairs of barbels. They have a large adipose fin, and their caudal fin is deeply forked. However, no externa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhamdia
''Rhamdia'' is a genus of three-barbeled catfishes found in Mexico, Central America, Central and South America. These catfishes are nocturnal, opportunistic carnivores, found in a wide range of freshwater habitats. This genus includes a number of Cavefish, troglobitic members, encompassing a number of taxon, taxa, including ''R. enfurnada'', ''R. guasarensis'', ''R. laluchensis'', ''R. laticauda'', ''R. macuspanensis'', ''R. quelen'', ''R. reddelli'' and ''R. zongolicensis''. In a few of these only some of their populations are troglobitic. Species There are currently 27 recognized species in this genus: * ''Rhamdia argentina'' (Alexander von Humboldt, Humboldt, 1821) * ''Rhamdia branneri'' John Diederich Haseman, Haseman, 1911 * ''Rhamdia cinerascens'' (Albert Günther, Günther, 1860) * ''Rhamdia enfurnada'' Maria Elina Bichuette, Bichuette & Eleonora Trajano, Trajano, 2005 * ''Rhamdia eurycephala'' Angrizani & Luiz Roberto Malabarba, Malabarba, 2018 * ''Rhamdia foina'' (Johanne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |