FAMILY ENDODONTID.E 



49 



Range. — Northern Idaho, at Old Mission. Like other species of 

 northern lilaho this probably extends across the parallel into British 

 America. 



Family ENDODONTID.ffi. 



Genus Pyramidula Fitzinger. 

 Subgenus Patula Held. 

 Pyramidula solitaria S.-iy. 



Helix soHlaria Sav, Journ. Acad. Nat. Sci. Phila., II, p. 157, 1 82 1. — BlN- 



NEY, Terr. Moll. U. S., I, p. 254, pi. viil, figs. 6-10; II, p. 208, pi. 



XXIV, 1851. 

 Patula solitaria (S.w) Binnev, Man. Am. Landsh., p. 254, figs. 263, 267, 



268, 1885. 

 Helix limitaris Dawson, Rep. Brit. N. Am. Boundary Survey, Geology, pp. 



347-350, 1875. 

 Pyramidula solitaria limitaris Pilsbry, Class. Cat. Am. Landsh., p. 31, 1898. 

 Patula solitaria var. occidentalis von Martens, ^i^c Pilsbry, 1. c, p. 31, 1898. 



Range. — Arkansas north to Ohio, west to eastern Oregon, and 

 northward in Alberta. 



Var. limitaris., Waterton Lake, Rocky Alts, in Alberta ; northern 

 Idaho. 



Var. occidentalism Dalles of the Columbia near Fort Vancouver ; 

 Coeur d'Alene Mts., Idaho. 



Figs. 33-35. Pyramidula alternata Say. 



♦Pyramidula alternata .Say. 



Helix alternata Sav, Nicholson's Encycl., 1st Am. ed.,li, pi. i, fig. 2, 1817. 



— Binnev, Land and Fw. Sh. N. Am., 1, p. 73, figs. 122-129, 1869. 

 Anguispira alternata Morse, Journ. Portland See. N. Hist., I, p. 11, fig. 15, 



pi. IV, fig. 16, 1864. 

 Helix dubia Shepard, Trans. Lit. Sci. Soc. Quebec, I, p. 194, 1829. 



Range. — Eastern North America as far north as Nova Scotia, 

 Lower Canada, and the international boundary. 



Lake of the Woods ! (Kennicott) ; Canso, Nova Scotia (^Jide Bin- 

 ney). 



Binney {op. cit., pp. 74, 76) gives the northeastern range of this 

 species as Labrador, but Canso, where his specimens were obtained, is 



