- prickleback - small elongate fishes of shallow northern seas; a long dorsal fin consists entirely of spines
--1 is a kind of blennioid fish, blennioid
--1 has particulars: snakeblenny, Lumpenus lumpretaeformis; eelblenny- stickleback, prickleback - small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
--2 is a kind of spiny-finned fish, acanthopterygian
--2 is a member of Gasterosteidae, family Gasterosteidae
--2 has particulars:three-spined stickleback, Gasterosteus aculeatus; ten-spined stickleback, Gasterosteus pungitius - stickleback, prickleback - small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research