ten-spined stickleback

Noun
  1. Confined to rivers (synset 101458102)
    is a type of: prickleback, stickleback - small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
    belongs to: gasterosteus, genus gasterosteus - type genus of the family Gasterosteidae
    same as: gasterosteus pungitius

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