Sorubim cuspicaudus, a new long-whiskered catfish from northwestern South America (Siluriformes : Pimelodidae)

Sorubim cuspicaudus, new species, is diagnosed herein as the only member of the genus known to occur west of the Andean Cordillera Oriental, occurring in the Sinu, Cauca, and Magdalena Rivers of Colombia and the Lago Maracaib o basin of Colombia and Venezuela. It is distinguished from other Sorubim s pecies by the following combination of characters: unique caudal fin shape with both lobes pointed; deep, blackened posterior fontanelle groove on the supraoccipital bone; combination of broad head and elongate body shape. So rubim cuspicaudus is known to attain lengths greater than 80 cm, making it the largest species in the genus and thus a valuable food resource.