PELECYPODA. 81 



Mass. — Vineyard Sound and Buzzards Bay, in cedar buoys; 

 Woods Hole in piles of wharves. 



Conn. — New Haven, in piles of wharves. 



Teredo norvagica Spengler. 



Teredo norvagicus Spengler, Skriv. Nat.-Selsk. Kjobenhavn, 1792, 

 vol. 2, pt. 1, p. 102, pi. 2, figs. 4-6. " Friedriksvaerns Havn i 

 NoRGE." Gould, Inv. Mass., 1870, p. 29, fig. 356. 



The prevailing indigenous species in the Northern Atlantic seas, 

 but it is rare on the American coast (Gould). 



Teredo nana Turton. 



Turton, Conch. Insul. Brit., 1822, p. 16, pi. 2, figs. 6, 7. " Tor- 

 bay, [England]." 



Teredo megotara Forbes and Hanley, Brit. Conch., 1853, vol. 1, 

 p. 77, pi. 4, fig. 6; pi. 18, figs. 1, 2; vol. 4, p. 246. Gould, Inv. 

 Mass., 1870, p. 30, fig. 357. 



Me. — From driftwood, Ironbound Island, Frenchman's Bay 

 (Blaney) . 

 Mass. — Provincetown; New Bedford; Cohasset. 

 R. I. — Newport. 



Teredo thomsonii Tryon. 



Tryon, Proc. Acad. Nat. Sci. Phila., 1863, p. 280, pi. 2, figs. 3-5. 

 "New Bedford, Mass." Gould, Inv. Mass., 1870, p. 31, fig. 358. 



Mass. — New Bedford; Provincetown. 



Teredo dilatata Stimpson. 



Stimpson, Proc. Boston Soc. Nat. Hist., 1851, vol. 4, p. 113. 

 " Lynn, (Mass.)." Gould, Inv. Mass., 1870, p. 32, fig. 359. 



Me. — Casco Bay. 



IVIass. — From pine buoys near Cape Ann; Marblehead; Pro- 

 vinceto-vNTi. 



