genus spirula

Noun
  1. Genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites (synset 101975588)
    is a type of: mollusk genus - a genus of mollusks
    member holonym: spirula, spirula peronii - a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral
    belongs to: family spirulidae, spirulidae - coextensive with the genus Spirula; included in the order Belemnoidea in some older classifications

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