Cephalaspidea

clade Euthyneura clade Euopisthobranchia The clade Cephalaspidea, also known as the headshield slugs and bubble snails, is a taxon of sea slugs and bubble snails, marine gastropod mollusks within the larger clade Euopisthobranchia. Bubble shells is another common name for these families of marine gastropods, some of which have thin bubble-like she...
Found on http://en.wikipedia.org/wiki/Cephalaspidea

Cephalaspidea

Cephalaspidea Bubble shell; order of marine opisthobranch molluscs most of which are bottom-living carnivores, preying on other invertebrates; typically with an external shell, a broad creeping foot and a flatttened dorsal head shield used for burrowing; the stomach has grinding gizzard plates.
Found on http://www.wordinfo.info/words/index/info/view_unit/218/
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