Valvata is a genus of very small freshwater snails with an operculum, aquatic gastropod mollusks in the family Valvatidae, the valve snails. The type species for this genus is Valvata cristata O.F. Müller, 1774. Species in the genus: Valvata O.F. Müller, 1773 include: (All the European species are included in this list.) ...
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http://en.wikipedia.org/wiki/Valvata
• (n.) A genus of small spiral fresh-water gastropods having an operculum.
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http://thinkexist.com/dictionary/meaning/valvata/
Val·va'ta noun [ New Latin ; confer Latin
valvatus having folding doors. See
Valve .]
(Zoology) A genus of small spiral fresh-water gastropods having an operculum.
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http://www.encyclo.co.uk/webster/V/4
valvata A genus of small spiral fresh water gastropods having an operculum (lid or cover becoming detached at maturity).
Found on
http://www.wordinfo.info/words/index/info/view_unit/2263/
No exact match found.
