Their bodies are soft and they have arthromeres. All molluscs are active with soft muscular feet. These include clams or gastropods, which are a common sight.
Corb shell
Cyclina sinensis
laternula marilina
Marsh clam
Meretrix lusoria
Hen clam
Mactra chinensis
Soletellina dlivacea
Sea snail
Glossaulax didyma
Batillaria multiformis