02838nab a2200301 a 4500003000900000005001700009008004100026041000800067100002900075700003100104245021600135264000900351300001700360500004100377520181300418650002602231650002802257650003002285650002002315650002602335650002002361773006902381942000802450035001702458001000702475999001902482040003502501AR-ReUNN20260702003057.0260630s2006    ag |||||||||||||||||eng  0 aeng1 aVari, Richard P.91475791 aFerraris Jr., Carl914758014aThe South American catfish genus Auchenipterus Valenciennes, 1840 - Ostariophysi : Siluriformes : Auchenipteridae - : monophyly and relationships, with a revisionary study / Carl J. Ferraris Jr., Richard P. Vari 1c2006  a64 páginas  aDisponible en caja 22 no 9 de INICNE  aThe Neotropical catfishes of the genus Auchenipterus Valenciennes (1840) are reviewed. The genus is hypothesized to be a monophyletic assemblage on the basis of the shared presence of grooves in the ventral surface of the head that accommodate adducted mental barbels. A possible second synapomorphy, the presence of papillae on the dorsal and medial surface of the ossified maxillary barbel of mature males, is tentatively advanced pending discovery of adult males of three species. Contrary to previous hypotheses which considered Auchenipterus to consist of a maximum of five species, we recognize 11 species, including two previously undescribed forms, A. britskii and A. menezesiAuchenipterus is broadly distributed through the Río Orinoco, Rio Amazonas, and Río de La Plata basins, and the coastal drainages of the Guianas, with one species in the Rio Pindaré-Mirim and Rio Parnaíba basins of northeastern Brazil. Auchenipterus nuchalis, previously thought to be broadly distributed across the range of the genus, is found to rather have a restricted distribution in the eastern portions of the Amazon basin, the lower portions of the Rio Tocantins, and lower courses of some rivers in Suriname and French Guiana. Citations of A. nuchalis from elsewhere in the range of the genus are of other species. Euanemus Müller & Troschel (1842) and Ceratocheilus Miranda Ribeiro (1918) are considered synonyms of Auchenipterus. Euanemus colymbetes Müller & Troschel (1842) is considered a synonym of Auchenipterus dentatus Valenciennes (1840), and A. paysanduanus Devincenzi (1933) is placed into the synonymy of A. nigripinnis Boulenger (1895). A neotype is designated for Hypopthalmus nuchalis Spix & Agassiz (1829). Lectotypes are designated for Euanemus colymbetes and Auchenipterus nigripinnis. 4aInland Waters9117440 4aFreshwater Fish9117439 4aPeces de Agua Dulce96471 4aCatfish9147560 4aRio de la Plata97617 4aArgentina942580 tZoological Journal of the Linnean Societygv. 126 (1999)w234702  cART  a(INICN)36126234703  c234703d234703  aAR-ReUNNbspacAR-ReUNNeaacr2