Cetopsidium pemon is a species of whale catfish found in the Caroni River and the Caura River basins, southern tributaries of the Orinoco in eastern Venezuela, the Meta River basin of the western portions of the Orinoco system in eastern Colombia, and the upper portions of the Branco River in northern Brazil. References Cetopsidae Freshwater fish of Brazil Freshwater fish of Colombia Fish of Venezuela Fish described in 2005