Ichthyoelephas
Ichthyoelephas is a genus of South American freshwater fish from the family Prochilodontidae. There are two species in the genus: "I. humeralis" reaches a length of at least and is found in the Santiago and Guayas river basins in Ecuador, and "I. longirostris" reaches a length of and is found in the Cauca–Magdalena river basin in Colombia. They feed on algae and detritus that are taken off rocks with their fleshy lips. They are commercially important food fish. Species. There are two species: