genus spirula

English Thesaurus

1. genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites (noun.animal)

hypernym	:	mollusk genus,
definition	:	a genus of mollusks (noun.animal)

member holonym	:	spirula, spirula peronii,
definition	:	a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral (noun.animal)

member meronym	:	family spirulidae, spirulidae,
definition	:	coextensive with the genus Spirula; included in the order Belemnoidea in some older classifications (noun.animal)