Definitions
from The Century Dictionary.
- Same as
Opisthobranchiata .
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) A division of gastropod Mollusca, in which the breathing organs are usually situated behind the heart. It includes the tectibranchs and nudibranchs.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares
Etymologies
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Examples
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The mollusk taxon that is best represented on the Internet is probably the Opisthobranchia, the sea slugs.
Archive 2009-08-01 AYDIN 2009
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The mollusk taxon that is best represented on the Internet is probably the Opisthobranchia, the sea slugs.
Where are all the malacologists? AYDIN 2009
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