Whelk. 



Periwinkle. 



Sea-snail. 

 Purple Snail. 



Wicker-basket Snail. 

 Black-footed Snail. 



Sea Mussel. Northern Quohog. Common Clam. Marsh Mussel. 

 Edible Mussel. Sea Clam. Ribbed Shell. Razor Shell. 



