SPIRULA
spirula, Spirula peronii
(noun) a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral
Source: WordNet® 3.1
Etymology
Noun
spirula (plural spirulas)
Any mollusk of the cephalopod genus Spirula, of which Spirula spirula is the only extant species.
Synonyms
• (Spirual): little post horn squid, ram's horn squid, tail-light squid
Anagrams
• parulis, uprisal
Source: Wiktionary
Spir"u*la, n. Etym: [NL., dim. of L. spira a coil.] (Zoöl.)
Definition: A genus of cephalopods having a multilocular, internal,
siphunculated shell in the form of a flat spiral, the coils of which
are not in contact.
Source: Webster’s Unabridged Dictionary 1913 Edition