bivalves
£1.99
Himalayan Bivalves
Fossilised Mollusca
Bivalves, which belong to the Phylum Mollusca and class Bivalvia, have two hard, usually bowl-shaped, shells (called valves) enclosing the soft body.
Mollusca is the second-largest phylum of invertebrate animals after the arthropoda. The members are known as molluscs or mollusks.