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Noun1.Spirulidae - coextensive with the genus Spirula; included in the order Belemnoidea in some older classifications
mollusk family - a family of mollusks
Decapoda, order Decapoda - squids and cuttlefishes
genus Spirula - genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites
References in periodicals archive ?
According to Voss (1977), the Sepioidea includes Spirulidae, Sepiidae, Sepiolidae, Idiosepiidae, and Sepiadariidae.
Bonnaud et al (1994) analyzed phylogeny of decapod cephalopods based on 3' end of 16S rDNA nucleotide sequences, and demonstrated that Sepiolids were clearly excluded from the order, and the position of the Spirulidae required further clarification.