LN^KKsoLL.] ZOOLOGY SUCININ^. 399 



Helix lluUani, Bid. and J, G. Cp. — Cceur d'Alene mission, Bitter 

 Boot Mountains and River, Idaho [Cooper) ; Idaho {Binney). 



Helix jidelis, Gray. — Large but very pale variety, Sumass Prairie, 

 Eraser Eiver (Lord). Pacific coast. 



Helix Toumsendiana,liea — "Both slopes of the Bitter Eoot Mountains, 

 from 2,200 to 5,000 feet high. Large variety at the base of the range 

 to 4,800 feet; small variety in dry prairie at junction of Hell-Gate and 

 Bitter Eoot Elvers" (Cooper). Sumass Prairie, Fraser Eiver; small 

 variety Fort Colville, summit of Eocky Mountains (Lord) ; east of Fort 

 Colville, Washington Territory (W. W. Bound. Surv.). Pacific coast. 



The small variety from northwest Idaho has been described as a new 

 species by Mr. A. I). Brown under the name of Helix 'ptychoplwra (Jour- 

 nal de Conchologie, 1870), giving as its habitat Bitter Eoot Mountains 

 and ^Nebraska. It is regarded as a variety only. 



Eelix pulclieUa, Mtjller. 



Camp 11 : Blue Eiver Valley 16 specimens. 



Camp 20 : West of Saguache 4 specimens. 



Camp 21 : Los Pinos Indian Agency 65 specimej s. 



Camp 26 : Howard ville. Baker's Park 50 specimens. 



Camp F : Eio La Plata , . . 10 specimens. 



iSTorth Park [Barber) 25 specimens. 



"This American form [minuta) of the Old-World pnlchella, Miill., has 

 only lately been found west of the Eocky Mountains. I obtained an 

 immature specimen near Truckee, in May. * * * Mr. Harford after- 

 ward found it common near Donner Lake, a few miles above Truckee ; 

 and Mr. Hemphill has also found them common near White Pine Mount- 

 ains. Not having been found north of Canada, its circumpolar distri- 

 bation, though asserted by Middendorf, is doubtful; he, like most 

 authors, considering it identical with pulchella.^' — Dr. J. G. Cooper. 



Helix Dupetit-Thouarsi, Desh. — Klamath Lake, Oregon [Newberry) ; 

 Sumass Prairie (iorf?). Pacific coast. 



Helix tudiculata, Binn. — Truckee, ]S"evada [Carlton). Pacific coast. 



SUCININ^. 



Succinea E"iittalliana, Lea. 



Camp 9 : Hot Suljjhur Springs 30 specimens. 



Camp D : Animas Valley 1 specimen. 



Warm Springs, near Salt Lake, Utah [Eeid) ; Snake Eiver [Wuttall); 

 Wright's Lake andEhett's Lake, northeast California [Newberry). Pa- 

 cific coast. 



Succinea ovalis, Goitld. 



Camp 10 : Mouth of Blue Eiver 1 specimen. 



Eastern States. 



Succinea rusticana, Gould. 

 Camp 9 : Hot Sulphur Springs , „ 12 specimens. 



Sumass Prairie, Fraser Eiver [Lord) ; Eocky Mountains of Bitter Eoot 

 Valley, 2,500 to 4,500 feet [Cooper) ; White Pine region, Nevada [Hemp- 

 Mil). Pacific coast. 



These three species are hardly to be distinguished. I separated 

 them as above after examination of shells in the Museum of Comparative 

 Zoology, but they merge into one another iudetermiuately. 



