GASTEROPODA. 213 



Me.— Buckfield. 

 Vt. — Middlebury. 

 Mass. — Duxbury. 



Bifidaria corticaria (Say). 



Walker, Rept. Geol. Surv. Mich., 1906, p. 511, fig. 134. 

 Odostomia corticaria Say, Nich. Encycl., 1817, vol. 4, pi. 4, fig. 5. 

 Pupa corticaria Gould, Inv. Mass., 1870, p. 439, fig. 700. 



Me.— Bethel; Gorham. 

 Mass.— Naushon Id. ; Wobum. 

 Conn. — Orange. 



*Pupilla muscorum (Linne). 



Walker, Rept. Geol. Surv. Mich., 1906, p. 513, figs. 137-140. 

 Turbo muscorum Linne, Syst. Nat., ed. 10, 1758, vol. 1, p. 767. 



" IN EUROPAE MUSCOSIS." 



Pupa muscorum Gould, Inv. Mass., 1870, p. 433, fig. 691. 



Me.— Near Fort Preble; Ironbound Id.; Mt. Desert; Rock- 

 land. 



Mass. — Provincetown; Dartmouth; Westport; High Pines, 

 Duxbury. 



Pupilla muscorum unidentata (C. Pfeiffer). 



Walker, Rept. Geol. Surv. Mich., 1906, p. 514, fig. 141. 

 Pupa unidentata C. Pfeiffer, Naturgesch. Deutsch. Land- u. 

 Siisswasser-Moll., 1821, vol. 1, p. 58, pi. 3, figs. 19, 20. "bey 



CaSSEL AUF DEM KrATZENBERGE, UND AUF DEM SCHLOSSE ZU 



Felsberg, [Germany]." 



Pupa badia Adams, Boston Journ. Nat. Hist., 1840, vol. 3, p. 331, 

 pi. 3, fig. 18. 



Me. — Thomaston. 



Vertigo modesta (Say). 



Dair, Harriman Alaska Exped., 1905, vol. 13, p. 29. 

 Pupa modesta Say, Narrative Long's Exped., 1824, vol. 2, p, 

 259, p. 15, fig. 5. "North-west Territory." 



