Key to the Species of Notropis

23a. (From 22a.) Eye large, diameter (A) exceeding or equal to length of snout (B); lateral stripe dark, terminating in caudal spot that may be round or wedge-shaped.

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23b. (From 22a.) Eye small, diameter (A) not exceeding snout length (B); lateral stripe and caudal spot may or may not be present.

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