Clam, in general, any member of the invertebrate class Bivalvia—mollusks with a bivalved shell (i.e., one with two separate sections). More than 15,000 living species of bivalves are known, of which about 500 live in fresh water; the others occur in all seas. Bivalves usually live on or in sandy or
Mollusks CK-12 Foundation
Scallop Facts: Habitat, Behavior, Diet
Class Gastropoda - Digital Atlas of Ancient Life
Bivalvia - Wikipedia
Mollusks CK-12 Foundation
The mollusca
What are crustaceans and molluscs? - Quora
Ocean Quahog NOAA Fisheries
Mollusks CK-12 Foundation
Field Guide
Photograph of the 5 mollusk species with the greatest production in
Mollusca
/cimages/videopreview/kcu6709l9x.jpg