Waller, Thomas R. Scanning electron microscopy of shell and mantle in the order Arcoida(Mollusks Bivalvia) Thomas R. Waller - Washington Smithsonian Institution Press 1980 - 58p. ill. 26cm. - Smithsonian contributions to zoology no. 313 . Subjects--Topical Terms: Arcoida--AnatomyMollusks--Evolution