Opisthobranchia
From Wiktionary, the free dictionary
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Etymology
From opisthobranch (“with the gills behind the heart”).
Proper noun
Opisthobranchia
- (obsolete) A taxonomic subclass within the class Gastropoda – a polyphyletic taxon including all opisthobranchs; some core members are now classified as the Euopisthobranchia.
Derived terms
References
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