
1) Decapod 2) Spirula peronii
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https://www.crosswordclues.com/clue/spirula

Spirula spirula is a species of deep water squid-like cephalopod mollusk. It is the only extant member of the genus Spirula, the family Spirulidae, and the order Spirulida. Because of the shape of its internal shell, it is commonly known as the ram`s horn squid or the little post horn squid. Because the live animal has a light-emitting organ, it ....
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http://en.wikipedia.org/wiki/Spirula

• (n.) 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.
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http://thinkexist.com/dictionary/meaning/spirula/

(from the article `skeleton`) ...lives in the large chamber. The shell behind is coiled and composed of air-filled chambers that maintain the animal in an erect position. When the ...
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http://www.britannica.com/eb/a-z/s/142
Spir'u·la noun [ New Latin , dim. of Latin
spira a coil.]
(Zoology) 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.
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http://www.encyclo.co.uk/webster/S/167

[
n] - a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral
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http://www.webdictionary.co.uk/definition.php?query=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
Found on
https://www.encyclo.co.uk/local/20974
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