1917.] NATURAL SCIENCES OF PHILADELPHIA, 103 



VITRINID^. 



Vitrina alaskana Dall. 



From the summit of the ascent north of Wright's cabin northward 

 to Black Canyon; abundant, especially near McKnight's cabin, on 

 bits of wood, etc. Not seen south of Iron Creek. 



ZONITID^. 

 Polita indentata umbilicata (Ckll.)- 



Black Range on Silver Creek; head of Iron Creek, Station 16^; 

 Animas Creek above the box. Station 25; Bear Wallow, Reed's ranch. 

 Station 43. It is rare at the higher levels. In dryer, lower country 

 it was taken at Station 1 , Gallina Creek, on Little and Big Palomas 

 Creeks, near Chloride, and in the Cuchillo and San Mateo Mountains. 



Zonitoides arborea (Say). 



Found throughout the Black Range; taken at 17 stations. 



Zonitoides minuscula alaohuana (Dall). 



Iron Creek, stations 16, 16|; Holden's Spring; drift of Percha 

 below King.ston; Oliver Mine, near Chloride. 

 Striatura milium meridionalis P. and F. 



Station 28, south side of Hillsboro Peak; Station 26, Holden's 

 Spring. 



Euconulus fulvus (Drap.). 



Everywhere along the crest, from Sawyer Peak to Black Canyon. 

 Also in drift at Station 1, Gallina Creek, and below Kingston; Oliver 

 Mine near Chloride; San Mateo Mountains, 



LIMACIDJE. 

 Agriolimax campestris (Binn.). 



Taken at 6 stations in the wooded zone of the Black Range. 



PUPILLID^. 

 Pupilla blandi pithodes n. subsp. 



The shell is short, cylindric with rounded ends, chestnut brown, 

 slightly shining. Whorls somewhat convex, the last slowly ascending 

 a little in front, somewhat flattened and tapering to the rather 

 narrow base, noticeably contracted behind the lip, having a quite 

 low (or sometimes rather strong) crest, of the same color" as the rest 

 of the shell, behind the contraction. Parietal lamella deeply placed, 

 about one-third of a whorl long. Lower palatal plica rather long. 

 Columellar lamella well developed, short. 



Length 3.2, diam. 1.8 mm. 



