
1) Genus fissurella 2) Mollusk genus
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https://www.crosswordclues.com/clue/fissurella

Fissurella is a genus of small to medium-sized sea snails or limpets, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets. The size of the body does not exceed or marginally exceeds that of the shell. The outer radular plate has four cusps. The propodium (= the anterior end of the foot) has no tentacles. == Ecology == Like a...
Found on
http://en.wikipedia.org/wiki/Fissurella

• (n.) A genus of marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex; -- called also keyhole limpet.
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http://thinkexist.com/dictionary/meaning/fissurella/

(from the article `gastropod`) ...Scaphella; have a few flatly coiled whorls that massively increase in width, as in Haliotis; become elongated spike-shaped, as in Turritella; or ...
Found on
http://www.britannica.com/eb/a-z/f/31

<marine biology> A genus of marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex. ... Synonym: keyhole limpet. ... Origin: NL, dim. Of L. Fissura a fissure. ... (19 Mar 1998) ...
Found on
http://www.encyclo.co.uk/local/20973
Fis`su·rel'la noun [ New Latin , dim. of Latin
fissura a fissure.]
(Zoology) A genus of marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex; -- called also
keyhole limpet .
Found on
http://www.encyclo.co.uk/webster/F/34

[
n] - type genus of the family Fissurellidae: keyhole limpets
Found on
http://www.webdictionary.co.uk/definition.php?query=Fissurella
genus Fissurella noun type genus of the family Fissurellidae: keyhole limpets
Found on
https://www.encyclo.co.uk/local/20974
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