Key to the Species of Cyprinidae

15a. (From 14b.) One or more barbels present at posterior corners of mouth, either behind junction of lower and upper lips or in a groove immediately above the upper lip (may be small and flap-like and difficult to see)

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15b. (From 14b.) No barbels present at posterior corners of mouth (Note: Cyprinella monacha has a barbel and Notropis harperi sometimes has a barbel).

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