Megadontognathus

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 20-25 cm in total length.

Species
There are currently two described species in this genus:


 * Megadontognathus cuyuniense Mago-Leccia, 1994
 * Megadontognathus kaitukaensis Campos-da-Paz, 1999