152 ANIMALS OF THE SEASHORE 



Astarte castanea Say 



PLATE XV. Fig. 7 



Shell thick, smooth, about 1 inch in length and 

 covered with a light brown epidermis. Found be- 

 tween Nova Scotia and Cape Hatteras but very rare 

 south of Delaware ; fairly common on sandy grounds 

 off northern New Jersey and frequently found on 

 the beaches of Asbury Park, Seaside Park, Beach 

 Haven and vicinity. Less common in Southern New 

 Jersey but is known to occur off Atlantic City and 

 near Five Fathom Bank (14 miles off Wildwood). 



Astarte is a northern genus and there are a num- 

 ber of species found along the coast of Northern New 

 England, Nova Scotia and Newfoundland. 



Venericardia borealis Conrad 

 (Cardita borealis Conrad) 



PLATE XIV. Fig. 4 



A heart-shaped shell with conspicuous radiating 

 ribs ; two prominent hinge teeth ; rusty brown epider- 

 mis. Fairly common Labrador to Cape Cod; rare 

 and in deep water south of that cape; a few shells 

 have been found on the New Jersey beaches at Cape 

 May and elsewhere; about an inch in length. 



Venericardia tridentata Say 



PLATE XIX. Fig. 9 



A small (% inch) somewhat triangular clam 

 with prominent ribs; decidedly a southern species 



