FISHERIES OF THE UNITED STATES. [78] 



Modiola plicaiula^ Lamarck. Grooved mussel. Georgia to Casco Bay, 

 Maine ; more rare and local further north. Abundant from New 

 Jersey to Massachusetts. 



33596. Coast of New Jersey. U. S. Fish Commission. 

 33486. Ocean View, N. J. T. C. Sharp. 

 334r>7. East Greenwich, R. I. A. A. Wilson. 



Modiola modiolus, Turton. Horse Mussel. Greenland south to New 

 Jersey on the eastern coast and south to Monterey on the Paci- 

 fic coast of the United States. Abundant north of Cape Cod, 

 and about Long Island and Staten Island. 



33662. Georges Bank. R. H. Hurlburt. 



33608. Vicinity of New York. E.G.Blackford. 



34643. Stones, shells, &c., attached, by byssns. E. G. Blackford, 



Pecten irradians, Lamarck. Scallop. Florida and northern shores of 

 the Gulf of Mexico to Cape Cod. Eare and local further north. 

 Abundant from Long Island Sound southward. 

 33608. Great South Bay, Long Island. F. C. Dayton. 



East Greenwich, B. I. 

 33567. Series illustrating color variations. A. A. Wilson. 

 Series illustrating growth. 



33431. Size during first week in September. 



33432. Size during second week in September. 



33433. Size during third week in September. 



33434. Size duriug fourth week in September. 



33435. Size during first week in October. 



33436. Size during second week in October. 



33437. Size duriug third week in October. 



33438. Size duiing fourth week in October. 



33439. Size duriug first week in November. 



33440. Size during second week in November. 



33441. Size during third week in November. 



33442. Size during fourth week in November. 



33443. Size when about one year old — marketable. 



33444. Size when fifteen months old. 



33445. Size when twenty-seven months old (very rare). 



Fecten tenuicostatus, Mighels. Great or Giant Scallop. New Jersey to 

 Labrador. Eare and local south of Cape Cod. Abundant in 

 Frenchman's Bay, Mount Desert. Common in Massachusetts 

 and Casco Bays and Bay of Fundy. 



33631. Cape Cod, Massachusetts. U. S. Fish Commission. 



32979. Castine, Me. Showing ravages of boring sponge (,C/ioHa su/p/furea). 



A. R. Crittenden. 

 329d0. Castine, Me. Showing ravages of boring sponge ( Cliona sulplmrea). 



L. J. Heath. 



Argina pexata, Gray. Bloody Clara. Florida and northern shores of 

 the Gulf of Mexico to Cape Cod. Eare and local further north. 

 Abundant from New Jersey to Massachusetts. 



33570. Maurice River Cove, Delaware Bay. Thos. J. Love. 

 33460. East Greenwich, R. I. A. A. Wilson. 



