PELECYPODS
Scrabble letter values: P3E1L1E1C3Y4P3O1D2S1 = 20
Definition
PELECYPODS is the plural of PELECYPOD.
noun PELECYPOD: marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together.
Synonyms of PELECYPOD: bivalve, lamellibranch