Cetopsis coecutiens (Lichtenstein, 1819)
Identification: Cetopsis coecutiens can be distinguished from all of its congeners by the combination of the presence of an eye, the conical teeth on the vomer and dentary, a body depth greater than 0.22 of SL, the elongated filaments on the distal portions of the first rays of the dorsal and pectoral fins in all specimens, and the presence of transversely-aligned, slit-like posterior nares. Maximum size: 264 mm SL.
Range: Cetopsis coecutiens is broadly distributed through the Amazon basin in Bolivia, Brazil, Colombia, Peru, and Venezuela, and also inhabits the Rio Tocantins basin in Brazil, and the R�o Orinoco basin in Colombia and Venezuela.
Information from Vari, R. P., C. J. Ferraris Jr. & M. C. C. de Pinna. 2005. The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study. Neotropical Ichthyology 3:127-238.