LIST OP LABRADOR MARINE ANIMALS. 413 



Pecten tenuicostatus Migh. (P. magellanicus Lam.) Is most 

 abundant on a sandy bottom at a fathom's depth. The young 

 ■were only dredged in 15 feet. The inhabitants call them " pussels'' 

 and often eat them. We can bear testimony to the delicacy and 

 rich flavor of this shell fish. 



A species of boring sponge, which grows two inches or more in 

 height, its roots boring worm-like galleries in the shell, hastens the 

 decomposition of dead shells very greatly. 



P. islandicus Mull. Common in 10-50 feet on a sandy or 

 rocky hard bottom. Valves are occasionally thrown up on 

 beaches. 



Limatula sulculus Leach. Several dredged in 15-50 feet sand 

 and gravel. 



Nucula tenuis Turton. 



Ni expansa Reeve. Occurred abundantly with the preceding. 



Dr. Stimpson has identified our specimens as being this before 

 doubtful species. 



Yoldia sapotilla Stra. A few occurred in 10-15 feet. 



Leda buccataSty. Abundant. Does not differ from Greenland 

 specimens. 



Crenella glandula Turton. Abundant. 



Modiolaria corrugata Stm. In 50 feet. 



M. laevigata Gray. With the preceding. 



31. discrepant Mull. A valve two inches long was taken from 

 the stomach of cod caught on the Bank. 



Mytilus modiolus Linn. Not common. 



3£. edulis Linn. Abundant. 



Alasmodonta arcuata Baines ? I was told that a fresh water 

 mussel was common in Salmon River. This must be the same shell 

 that Professor Chadbourne informs me is very abundant in the 

 streams of Newfoundland. 



No Cyclades or any other fresh water mollusca were found in the 

 countless pools of the mainland ; though a more thorough search 

 than I could make must reveal some forms. 



Cryptodon Gouldii Phil. Very large and abundant; a few in 

 50 feet. 



Cardita borealis Conr. Bank 50 feet. 



Astarte semisulcata Leach. A. elliptica Brown. Bank 50 feet 

 Abundant. 



A. Banhsii Leach. Frequent with the two preceding shells 



Cardium islandicum Chemn. Very abundant and large in Sal 

 »on Bay. 



