Spirulan.
/ˈspʌɪrjʊlə/ Zoology.
A genus of cephalopods having a flat spiral shell in the hinder part of the body; an animal of this genus, or one of the shells.
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the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Dibranchiata > section Decapoda > family Spirulidae > genus Spirula
Spirula1835
1835–6 Todd's Cycl. Anat. & Physiol. I. 546/2 The shell of the Spirula is..convoluted on one plane, with the whorls disjoined.
1851 S. P. Woodward Man. Mollusca i. 13 The argonaut, with his relative the spirula, both carnivorous.
1881 Cassell's Nat. Hist. V. 181 The beautiful pearly-white shell known as Spirula.
Derivatives
ˈspirule n. [Compare French spirule.]
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the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Dibranchiata > section Decapoda > family Spirulidae > genus Spirula > member of
spirule1851
1851 M. Roberts Mollusca 57 The Spirule, like the Nautilus, has a chambered, siphonated shell.
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2022).
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n.1835