Scientific name: Notropis dorsalis
Bigmouth shiner occurs in medium-sized streams with clean gravel and is native to the western half of the state's watersheds. As an exception to this, there are also records from the Chemung watershed since 1981, where it has also become established as a non-native. This species still inhabits most of its range in the Genesee, while there appears to be declines in the areas east, west and northeast of there. Its range appears stable in the Allegheny, where it is labeled as an Allegheny subspecies. It can still be caught in about half of its former range, since 1977.