Rhytiodus

Rhytiodus is a genus of South American freshwater fish belonging to the family Anostomidae. These fish are characterized by their elongated bodies, small mouths, and the presence of small teeth. They are primarily herbivores, feeding on aquatic plants and algae. Rhytiodus species are found in various river basins across South America, including the Amazon and Orinoco. They are often found in schools and prefer areas with dense vegetation. The genus is relatively small, consisting of a few recognized species, each with specific geographical distributions and subtle morphological differences.