Bivalvia
Bivalves is a large class of molluscs. They usually have a shell that is composed of two parts. Both parts are more or less symmetrical.
There are over 30,000 species of bivalves. All of them live in the water, some of them in the seas, others in fresh water. All are filter feeders. Like the other shelled molluscs, the gastropods, bivalves produce a limy shell out of calcium. Bilvales are also known as clams or pelecypods.
There are over 30,000 species of bivalves. All of them live in the water, some of them in the seas, others in fresh water. All are filter feeders. Like the other shelled molluscs, the gastropods, bivalves produce a limy shell out of calcium. Bilvales are also known as clams or pelecypods.