1917.] NATURAL SCIENCES OF PHILADELPHIA. 103 
VITRINIDA. 
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, ete. Not seen south of Iron Creek. 
ZONITIDA. 
Polita indentata umbilicata (CkIl.). 
Black Range on Silver Creek; head of Iron Creek, Station 163; 
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 alachuana (Dall). 
Iron Creek, stations 16, 163; Holden’s Spring; drift of Percha 
below Kingston; 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. 
LIMACIDA. 
Agriolimax campestris (Binn.). 
Taken at 6 stations in the wooded zone of the Black Range. 
PUPILLIDA. 
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. 
