Key to the Species of Notropis

19a. (From 18b.) Margins of dorsal scales distinctly outlined with melanophores, producing dark longitudinal lines along back and upper sides; dorsal fin origin in front of or over vertical from pelvic fin insertion; eye diameter (A) greater than snout length (B); predorsal scale rows 16 or less.
telescope shiner

Notropis telescopus

19b. (From 18b.) Scales not distinctly outlined with melanophores; dark longitudinal lines along back and upper sides absent; dorsal fin origin well behind vertical from pelvic fin insertion; eye diameter (A) equal to or slightly less than snout length (B); predorsal scale rows 17 or more.

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