small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
Type | Words |
---|---|
Synonyms | prickleback |
Type of | acanthopterygian, spiny-finned fish |
Has types | gasterosteus pungitius, three-spined stickleback, gasterosteus aculeatus, ten-spined stickleback |
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