36 FAUNA OF NEW ENGLAND. 



PERIPLOMIDAE. 



*Periploma fragilis (Totten). 



Dall, Bull. U. S. Nat. Mus., 1889, no. 37, p. 64, pi. 59, fig. 7. 



Anatina fragilis Totten, Amer. Joum. Sci., 1835, ser. 1, vol. 28, 

 p. 348, fig. 1. " Newport Harbor, R. I." 



Anatina papyracea Gould, Inv. Mass., 1870, p. 66, fig. 382 {tiou 

 Say, 1822). 



Me. — Casco Bay, 10 fathoms; Frenchman's Bay, 4 to 10 fath- 

 oms; Old Orchard. 



Mass. — Massachusetts Bay. 



R. I.— Off Block Island, 29 fathoms. 



*Periploina (Cochlodesma) leanum (Conrad). 



Dall, Bull. U. S. Nat. Mus., 1889, no. 37, p. 64, pi. 59, fig. 6. 

 Anatina leana Conrad, Joum. Acad. Nat. Sci. Phila., 1831, ser. 1, 



vol. 6, p. 263, pi. 11, fig. 11. " NORTHERN COAST OF THE U. S." 



Cochlodesma leanum Gould, In^^ Mass., 1870, p. 68, fig. 383. 



Me. — Casco Bay; Frenchman's Bay; Eastport. 

 Mass. — Nahant; Cape Cod; Vineyard Sound; Nantucket; 

 Georges Bank. 



Conn. — Long Island Sound, 3 to 10 fathoms. 



THRACIIDAE. 



*Thracia conradi Couthouy. 



Couthouy, Boston Journ. Nat. Hist., 1839, \o\. 2, p. 153, pi. 4, 

 fig. 2. " COAST OF New England." Gould, Inv. Mass., 1870, 

 p. 69, fig. 384. Morse, Nautilus, 1913, vol. 27, p. 73. 



Thracia dcclims Conrad, Amer. Marine Conch., 1832(?), p. 44, pi. 9, 

 fig. 2 {non Pennant, 1778). 



Me. — Casco Bay, 6 to 15 fathoms; Frenchman's Bay, 3 to 16 

 fathoms; Eastport, 6 fathoms. 



