OP WEST COAST MOLLUSC A. 15 



260 Succinea Hawkinsii Baird. 

 Near lat. 49, Wash. Territory. 



261 Succinea rusticana Gld. 

 Oregon to Tulare Valley, Cal. 



262 Succinea Nuttalliana Lea. 

 Wright's Lake, Cal. to Snake R. Oregon. 



263 Succinea lineata W. G. Binn. 

 Northeast Cal. to Nebraska and Brit. Col. 



264 Succinea Oregonensis Lea. 

 Oregon to Santa Cruz, Cal. 



265 Succinea Sillimani Bland. 

 Humboldt Lake, Nevada. 



266 Vitrina Pfeiflferi Newc. 



Carson Valley, Nev., to Owen's Valley, Cal. 



267 Binneya notabilis Cp. 



Barbara I. Cal. ; southeast side only. 



268 Hyalina arborea Say. 



San Gorg. Pass, Cal. Montana E. States. 



269 Hyalina Breweri Newc. 



" Big Trees,'' Calaveras Co., north. 



270 Macrocyclis Newberryana W. G.Binn . 

 Temescal Mountains, near San Diego. 



271 Macrocyclis Vancouverensis Lea. 

 Santa Cruz, Cal. north ; Idaho. 



272 Macrocyclis sportella Gld. 



Shasta Co., Cal., to Puget's Sound. 



273 Macrocyciis Voyana Newc. 

 Canon Creek, Trinity Co., Cal. 



274 Conulus chersina Say. 



San Gorgonio Pass to Lake Taho E. States. 



275 Conulus ? chersinella Doll. 

 " Big Trees," Calaveras Co., Cal. 



276 Pseudohyalina milium Morse ? 

 Monterey to Nevada Co., Cal. Maine. 



277 Pseudohyalina minuscula Binn. 

 San Bernardino, eastward to Maine W. I. 



278 Pseudohyalina conspecta Bland. 

 San Francisco ; Monterey. 



279 Patula Hornii Call. 

 Fort Grant, Arizona. 



280 Patula Whitney! Newc. 

 Near Luke Taho, California. 



281 Patula Cronkhitei Newc. 

 Alameda Co., Cal., to Klamath Lake. 



