Rhytiodus microlepis is a freshwater characiform fish of the family Anostomidae that inhabits the Amazon River basin in South America, where it lives in tropical benthopelagic environments and contributes to the ecology of floodplain and river systems. The species is notable for its small-scaled body, elongated form, and specialized herbivorous feeding habits, with studies identifying it among fishes that make extensive use of leaves and plant material as food resources. Understanding Rhytiodus microlepis offers insight into the diversity of Amazonian freshwater fishes, the adaptive strategies of anostomids, and the delicate relationship between aquatic animals and the seasonal habitats that support their growth, feeding, and reproduction.
