the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [noun] > section Siphonida > sinu-pallialia > family Veneridae > shell of (2)
the quahog or hard clam, Mercenaria mercenaria, the shell of which was used to make wampum (see sense 1a).
(the shell of) the marine bivalve mollusc Venerupis pullastra; the pullet carpet shell. Obsolete.