140 New York State Museum 



mata), is found on the New England coast on the under- 

 side of large shelving rocks. The body in this species 

 is covered with overlapping scales and granulations, and 

 when retracted is about an inch thick and two and one- 

 half to three inches long. 



The common representatives of the crustaceans besides 

 the numerous small crustaceans are the ubiquitous Acorn 

 Barnacle, a large solitary species of barnacle (Balanus 

 hameri) which is found on rocks below low tide along 

 the New England coast north of Cape Cod, the Rock 

 Crab, Jonah Crab, the Toad Crab and the American 

 Lobster (Homarus americanus) . The American Lobster 

 also inhabits sandy shores. It is found from North Caro- 

 lina to southern Labrador and now is most abundant off 

 the coast of Maine. While our lobster is usually dark 

 green in color, with red and blue mottling, blue, red or 

 cream colored lobsters are sometimes seen. Lobsters, 

 like crabs, go to deeper water in cold weather, but they 

 never go to a depth of much more than 600 feet. The 

 Spiny Lobster (Panulirus argus), common in the waters 

 of the Bermudas, Florida and the West Indies, lives in 

 rocky crevices in shallow water. It has five pairs of 

 walking feet which lack the claws, and is therefore often 

 referred to as the Clawless Lobster. 



The species of mollusks common to the rocky shores 

 include the nudibranchs {Doris, Eolis) already men- 

 tioned and a pale yellow species {Ancula sulphured) 

 commonly found on rocky bottoms off the New Eng- 

 land coast north of Cape Cod and very abundant in 

 the deeper waters. Then there are among the gastro- 

 pods the abundant Limpets, Periwinkles and Rock 

 Snails, also the English Whelk (Buccinum undatum) 

 and the Ten-Ribbed Snail. The English Whelk af- 



