saddle oyster

English Thesaurus

1. thin-shelled bivalve having the right valve deeply notched (noun.animal)

hypernym	:	oyster,
definition	:	marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters (noun.animal)

member meronym	:	anomia, genus anomia,
definition	:	type genus of the family Anomiidae: saddle oysters (noun.animal)