PELECYPODA. 13 



LEDIDAE. 



*Leda tenuisulcata (Couthouy). 



Gould, Inv. Mass., 1870, p. 161, fig. 468. 



Nucula tenuisulcata Couthouy, Boston Journ. Nat. Hist., 1838, 

 vol. 2, p. 64, pi. 3, fig. 8. " Mass. Bay." 



Me. — Casco Bay; Frenchman's Bay, 10 to 35 fathoms; East- 

 port, 10 to 35 fathoms. 



N. H.— Ofl^ Isles of Shoals, 20 fathoms. 



Mass. — From fish caught off Nahant; Provmcetown; Duxbury; 

 Georges Bank, 40 to 150 fathoms. 



R. I. — Newport. 



Leda acuta (Conrad). 



Nucula acuta Conrad, Amer. Marine Conch., 1832, p. 32, pi. 6, 

 fig. 3. "Virginia" (fossil). 



Leda unca Verrill, Proc. U. S. Nat. Mus., 1881, vol. 3, p. 401. 



Seventy-three miles south of Marthas Vineyard, 65 to 219 

 fathoms. 



R. I. — South of Newport, 85 to 155 fathoms. 



Leda caudata (Donovan). 



Gould, Inv. Mass., 1870, p. 165, fig. 471. Verrill and Bush, 

 Proc. U. S. Nat. Mus., 1898, vol. 20, p. 855, pi. 82, fig. 1. 



Area caudata Donovan, Brit. Shells, 1801, vol. 3, pi. 78. " Kent- 

 ish COAST, [England]." 



Gulf of Maine, N. lat. 42° 57', W. long. 69° 50', 102 fathoms. 



Leda pernula (Miiller). 



Verrill and Bush, Proc. U. S. Nat. Mus., 1898, vol. 20, p. 855, 

 pi. 82, fig. 2. 



Area pernula Miiller, Beschaft. Berlin. Naturf. Ges., 1779, vol. 

 4, p. 57. [Locality?] 



Leda jacksonii Gould, Inv. Mass., 1870, p. 163, fig. 469 (in part). 



