| Information | |
|---|---|
| has URI | http://lexvo.org/id/term/por/Opisthobranchia | 
| Meaning | |
|---|---|
| means | (noun) gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares Opisthobranchia, subclass Opisthobranchia  | 
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