Phylogenetic analyses of cytochrome b sequences support the prior hypothesis from genetic and meristic data that the Ozark Plateau endemic, Cottus hypselurus, is polytypic. These results support recognition of two species, C. hypselurus (Osage, Gasconade and Black Rivers) and Cottus sp. cf. hypselurus (Current, Eleven Point, Spring, and White rivers).

The American Society of Ichthyologists and Herpetologists
2003
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