Megalonema

Megalonema is a genus of long-whiskered catfishes native to South America.

Species
There are currently eight recognized species in this genus:
 * Megalonema amaxanthum Lundberg & Dahdul, 2008
 * Megalonema argentinum (MacDonagh, 1938)
 * Megalonema orixanthum Lundberg & Dahdul, 2008
 * Megalonema pauciradiatum Eigenmann, 1919
 * Megalonema platanum (Günther, 1880)
 * Megalonema platycephalum Eigenmann, 1912
 * Megalonema psammium Schultz, 1944
 * Megalonema xanthum Eigenmann, 1912