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The Collaborative International Dictionary
Hornyhead

Hornyhead \Horn"y*head`\, n. (Zo["o]l.) Any North American river chub of the genus Hybopsis, esp. Hybopsis biguttatus.

Wiktionary
hornyhead

n. Any North American river chub of the genus (taxlink Nocomis genus noshow=1), especially (taxlink Nocomis biguttatus species noshow=1).

Wikipedia