1918.] NATURAL SCIENCES OF PHILADELPHIA. 327 
18, 29 (1914); Little Blue; rim of Blue Mountains, 12,000 ft.; also 
in Apache Co. on Fish Creek, 10,500 ft. 
New Mexico: Stations 38, 42, 46, 55, Mogollon Mountains. 
Striatura milium meridionalis (P. & F.). 
- Arizona: Cosper’s pasture, 11,000 ft., Graham Co.; Black River 
and Reservation Creek, 9,500 ft., Apache Co. 
New Mexico: Station 57, south fork of Whitewater Creek, 
Mogollon Mountains. 
Zonitoides arborea (Say). 
Arizona: Station 29, Blue River; Cosper’s pasture and rim of the 
Blue Mountains, Graham Co.; Reservation Creek and Fish Creek, 
Apache Co. Up to 12,000 ft. 
New Mexico: Stations 38, 42, 46, 50, in the Mogollon Mountains. 
Zonitoides minuscula alachuana (Dall). 
Arizona: Graham Mountain, Graham Co.; Station 6, foot of 
Copper King Mountain. Reservation Creek, Apache Co. 
New Mexico: Big Dry Creek, Mogollon Mountains. 
Zonitoides singleyana (Pils.). 
Arizona: Station 6 (1914), foot of Copper King Mountain, 1 mile 
below Harper’s, Graham Co. 
Euconulus fulvus (Miill.). 
Arizona: Station 58, Cosper’s pasture, 59, rim of Blue Mountains, 
Graham Co.; Reservation Creek and Station 75, White Mountain 
Camp, 13,500 ft. 
New Mexico: Stations 38, 42, 45, 46, 47, 50, 53, in the Mogollon 
Mountains. 
VITRINIDA. 
Vitrina alaskana Dall. 
Arizona: Rim of Blue Mountains, 12,000 ft., Graham Co.; Res- 
ervation Creek, Apache Co., 9,000 ft. 
New Mexico: Stations 45, 46, Willow Creek, Mogollon Mountains. 
VALLONIID4. 
Vallonis perspectiva Sterki. 
Arizona: Graham Mountains; Cosper’s ranch of the Blue River, 
5,060 ft.; Ole Hagen’s ranch on Eagle Creek. Abundant. 
New Mexico: Station 38, Silver Creek above Mogollon, and 57, 
south branch Whitewater Creek; also Big Dry Creek, Mogollon 
Mountains. 
Vallonia cyclophorella Ckll. 
Arizona: Cosper’s pasture and rim of Blue Mountains, Graham 
Co.; Reservation Creek, Apache Co. 9,500 to 12,000 ft. 
