128 



Pupilla alticola, SP. NOV. 



Animal not observed. 



Shell perforate, straight, two and one-half times as long as hroad, densely 

 striate, subtranslucent, chestnut-hroivn, apex obtuse ; ivhorls 6 or 1, convex, 

 the middle three of the spire equal, causing a 'parallelism in the sides of the 

 shell, the last noticeably greater, expanding toumrd the aperture, not closely 

 appressed to the body-ivhorl ; suture deeply impressed; aperture small, oblique, 

 subtriangular, margins connected by a thin deposit, without internal pro- 

 cesses ; peristome simple, somewhat reflected over the umbilicus. 



Camp 26 : Cunningham Gulch 25 specimens. 



Camp F : Eio La Plata 5 specimens. 



Eemaeks. — It will not be difficult to recognize this species by its 

 parallel sides, base-like expansion of the last whorl, coarse incremental 

 lines, and edentate aperture. It seems to be an essentially alpine spe- 

 cies, none having been found at an elevation less than 8,000 to 9,000 

 feet. It was plenty in the localities mentioned above. 



Leucochila arizonensis, Gabb. — Fort Grant, Arizona {Horn)-, Pike's 

 Peak, Col. {Tryon); White Pine, Nevada {Hemphill). 



Leucochila hordeacea, Gabb. — Fort Grant, Arizona (Horn). 



VERTIGININ^. 



Vertigo califomica, Kowell. 



Camp 11 : Blue Eiver Yalley 15 specimens. 



Camp 21 : Los Pinos Agency 3 specimens. 



Camp 23 : Divide southwest of Los Pinos 3 specimens. 



Camp 26 : Howardsville 50 specimens. 



Camp D : Animas Yalley 2 specimens. 



Camp F : Eio La Plata 4 specimens. 



Vertigo corpulenta, Morse. 



Camp 21 : Los Piuos Agency 2 specimens. 



Camp 23 : Divide,^southwest of Los Pinos 1 specimen. 



Eastern slope Sierra l^eyada {Hemphill). 



HELICIDiE. 



VITEINuE. 



Macrocyclis Vancouver ensis, Lea. — Idaho ; west side of Coeur d'Alene 

 Mountains, in forests of coniferie {Cooper); Sumass Prairie, Fraser 

 Eiver {Lord). 



Zonites arboreus, Say. 



Camp 9 : Hot Sulphur Springs 3 specimens. 



Camp 11 : Blue Eiver Valley 13 specimens. 



Camp 26 : Howardsville, Baker's Park 22 specimens. 



Camp F : Eio la Plata 3 specimens. 



" Damp bottom-lands along the lower valley of Hell-Gate Eiver, Mon- 

 tana" (Cooper); Washoe County, Nevada; Montana; Eio Chama, New 

 Mexico {Binney and Bland). 



