Molluscs 2BIbDF09 10/11

What are molluscs?

They are animals with a bilateral symmetry and an exoskeleton called a shell. There are three different groups of molluscs; the Gastropods, the Cephalopods and the Bivalves.

The Gastropods

The Gastropods include the snails and the slugs. Some of them live into the water. These molluscs can be unisexual or hermaphrodite. The Gastropods have a stomach-footed. They move by muscle contractions. They can have a shell like the snails.

References

• http://www.earthlife.net/inverts/mollusca.html