Lenger Island is one in few of the islands in Pohnpei that has a marine facility.
Body is enclosed in a shell made up of two valves that are attached together.
Has a wedge-shaped foot.
Class Bivalvia is the second most largest class in the phylum mollusca. this class includes clams, oysters, mussels, and scallops. Many of these are edible and some form pearls.
Valves: two convex halves of the shell
Umbo: a swollen area near thefront part of the shell. It is said to be the oldest part of the shell.
How is pearl produced?
When a piece of sand or parasite is caught in between the shell and the mantle, it creates an irritation. This irritation will cause the bivalve to secrete nacre around the irritant gradually forming a pearl.
These bivalves are filter feeders. they suck in water and filter out their food from the water.