16 GEOGRAPHICAL CATALOGUE 



282 Patula striatella Anth. 



Montana ? Northern States to Slave Lake. 



283 Patula Durantii Newc. 

 Barbara I., Cal. ; southeast side only. 



284 Helicodiscus ? polygyrella Bid. 



Bitter-root Mountains, Montana; in moss. 



285 Anguispira solitaria Say. 

 Montana ? Missouri to Lake Erie. 



286 Anguispira Cooperi W. G. Binn. 

 Montana to Arizona ; in mountains. 



287 Anguispira strigosa Old. 

 Montana to Arizona ; in mountains. 



288 Anguispira? Idahoensis Newc. 

 Eastern Idaho ; in mountains. 



289 Helix Hillebrandi 

 Mariposa and Tuolumne Cos., Cal. 



290 Helix Mormonum Pfeiff. 

 Fresno Co to Shasta Co., Cal. 



291 Helix sequoicola Cp. 



Santa Cruz Co., Cal. 



292 Helix infumata Old. 



Contra Costa Co. to Mcndocino Co., Cal. 



293 Helix fldelis Gray. 



Humboldt Bay, Cal., to Vancouver's I. 



294 Helix Dupetithouarsi Desk. 

 Monterey, Cal. (Point Cypress.) 



295 Helix Ayresiana Newc. 



Santa Cruz I., Cal. (Newcomb Coll.) 



296 Helix Traskii Newc. 



Near Los Angeles to San Luis Obispo, Cal. 



297 Helix rufocincta Newc. 

 Catalina I., Cal.; San Diego? 



298 Helix Gabbii Newc. 

 Clemente I., Cal. ; Catalina I ? 



299 Helix facta Newc. 

 Barbara and Nicolas Is., Cal. 



300 Helix Rowellii Newc. 

 " Arizona 1" (Frick.) 



301 Helix Carpenteri Newc. 

 Tulare Valley. Very rare. 



302 Helix Tryoni Newc. 

 Barbara and Nicolas Is., Cal. 



303 Helix intercisa W. G. Binn. 

 " Oregon" San Miguel I., Cal. ? 



