EKEY - The Electronic Key for Identifying Freshwater Fishes
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image of Figure 63
Figure 63 [Copyright: American Fisheries Society]
Figure 63: Genital papillae of nuptial or nearly nuptial sculpins, Cottus; full range of variation not shown. Broadband sculpins, Cottus spp.: (F) Bluestone sculpin, (G) Clinch sculpin, (H) Holston sculpin. A - anus, R - base of first anal ray, P - papilla.