Description : Phylum Mollusca
Last Answer : CALIFORNIA MUSSEL (Mytilus californianus) Habitat: Rocky intertidal zone from Alaska to Baja California. Size: 25 cm (10 in) long, 10 cm (4 in) high Position in food web: Filter ... causing tremors, seizures, and disorientation in marine mammals. Relatives: scallops, squid, and sea hares