( n. pl. )
A division of opisthobranchiate mollusks having the branchiae in a wreath or group around the anal opening, as in the genus Doris.
( n. pl. )
A division of opisthobranchiate mollusks having the branchiae in a wreath or group around the anal opening, as in the genus Doris.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012