Noun
A fish of species Gila alutacea (formerly Acrocheilus alutaceus) native to the Pacific Northwest of North America.
- Synonyms
- squaremouthhard-mouth chub
- Examples
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The large black chub (Acrocheilus alutaceus), of the Pacific Coast rivers, is known locally as chiselmouth, squaremouth and hardmouth.
In British Columbia, hybrids between the chiselmouth and the northern pikeminnow are common in Missezula Lake and Wolfe Creek (both near Princeton).