Definitions for

Overview of noun opisthobranchia

The noun opisthobranchia has 1 senses? (no senses from tagged texts)
1. Opisthobranchia, subclass Opisthobranchia

(gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares) © 2001-2013, Demand Media, all rights reserved. The database is based on Word Net a lexical database for the English language. see disclaimer
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