Genus Notropis refers to a group of small freshwater fishes that are commonly found in North American rivers and streams. Synonyms for Genus Notropis include Cyprinella, Luxilus, and Pimephales. These synonyms are used to describe the different groups of fishes that share similar physical and behavioral characteristics with the organisms in the Genus Notropis. While they may belong to different genera, these fishes are all closely related and play an important role in the ecosystem they inhabit. Being able to identify and understand the different synonyms for Genus Notropis allows scientists to study and monitor these species and ensure their survival in the wild.