Megadontognathus is a genus of ghost knifefishes found in river rapids in tropical South America. They are brown with a stubby snout and reach about in total length.
Species There are currently two described species in this genus:
Megadontognathus cuyuniense Mago-Leccia, 1994 Megadontognathus kaitukaensis Campos-da-Paz, 1999
References