Key to the Species of Cyprinella

8a. (From 7b.) Caudal spot oval in shape; anal rays usually 9; lateral scale rows usually 43; body slender, body depth averaging 20 percent of standard length.
blacktail shiner

Cyprinella venusta stigmatura

8b. (From 7b.) Caudal spot circular in shape; anal rays usually 8; lateral scale rows usually 39; body robust, body depth averaging 23 percent of standard length.
blacktail shiner

Cyprinella venusta cercostigma