394 



GEOLOGICAL SURVEY OF THE TERRITOKIES. 



Vitrina limplda, Gould. 



Camp 24 : Clear Creek, Northeast Antelope Park 25 specimens. 



Camp 26 : Howardville, Baker's Park , . , . 3 specimens. 



Camp 1) : Auimas Valley 12 specimens. 



I do not find this species anywhere recorded from the central basin. 

 It was, therefore, after long hesitation that I separated these specimens 

 from the following species, which includes the majority of the Vitrince 

 collected, and has a coextensive distribution in the Rocky Mountains. 

 The recorded range of the present species is eastward from Lake 

 Superior. 



Vitrina Pfeifferi, Newcomb. 



Camp 21 : Los Pinos agency 25 specimens. 



Camp 23 : Divide southwest of Los Pinos 15 specimens. 



Camp 26 : Howardville, Baker's Park 40 specimens. 



Camp F : Rio La Plata 4 specimens. 



Camp P : Head of Mineral Creek 6 specimens. 



Carson Valley, Nevada {Newcomb) ; Lake Tahoe {Cooper); head of 

 Gunnison River, Colorado {Carpenter). Western slopes of the Sierra 

 Nevada. 



It will be noticed that all my localities are southern, but at a great 

 elevation, shells from Mineral Creek having been collected in a snow- 

 storm. It is well known that " the animal is very hardy ; for, according 

 to Nilson, it is found crawling about among leaves in the southern part 

 of Sweden in the depth of winter, and it is also found in the most north- 

 ern part of that country." The gentlemen of the United States Explor- 

 ing Expedition found their specimens of Vitrina almost universally on 

 the tops of mountains. 



Limax montanus, sp. NOV. 



Color bluish-gray ; form stout, with blunt posterior extremity ; length 

 exceeding one inch ; color brown, with mantle, head, tentacles and eye-pedun- 

 cles blade ; bottom of foot white. 



u^ 



1, Jaw. 2, Lingual dentition. 3, Genitalia: a, external orifice; i, genital Madder; 

 c, oviduct; d, testicle; e, epididymis; /, ovary; g, vas deferens; h, penis-sac. 



