A clam is any of a number of edible[?] marine bivalve mollusks living in sand or mud[?] on the shores of oceans.
Also see mussel.
... 0.59% African American, 0.00% Native American, 0.52% Asian, 0.13% Pacific Islander, 0.26% from other races, and 0.46% from two or more races. 6.36% of the population are ...