212 FAUNA OF NEW ENGLAND. 



Vt. 



Mass. — Boston. 

 R. I. — Tiverton. 

 Conn. — New Haven. 



*Bifidaria contracta (Say). 



Walker, Kept. Geol. Surv. Mich., 1906, p. 510, fig. 133. 



Pupa contracta Say, Journ. Acad. Nat. Sci. Phila., 1822, ser. 1, 

 vol. 2, p. 374. " Virginia." Gould, Inv. Mass., 1870, p. 438, fig. 

 698. 



Me. — Bethel ; Bangor. 



Vt. — Burlington. 



Mass. — Westport; Swampscott. 



Conn.— Housatonic Valley. 



*Bifidaria pentodon (Say). 



Vanatta and Pilsbry, Nautilus, 1906, vol. 19, p. 122, pis. 6, 7, 

 figs. IHII. 



Vertigo pentodon Say, Joum. Acad. Nat. Sci. Phila., 1822, ser. 1, 

 vol. 2, p. 376. " Pennsylvania." 



Pupa ciirvidens Gould, Inv. Mass., 1841, p. 189, fig. 120. 



Pupa pentodon Gould, Inv. Mass., 1870, p. 434, figs. 693, 694. 



Me. — Buckfield; Woodland; Bethel; Fairfield; Westbrook; 

 Orono. 



Vt. — Burlington. 



Mass. — Cohasset; High Pines, Duxbury; Wobum. 



R. I. 



Conn. — New Haven. 



Bifidaria tappaniana (C. B. Adams). 



Vanatta and Pilsbry, Nautilus, 1906, vol. 19, p. 126, pi. 7, figs. 

 42-53. 



Pupa tappaniana Adams, in Thompson's Hist. Vt., 1842, p. 158. 

 [Vermont.] 



