1918.] NATURAL SCIENCES OF PHILADELPHIA. 303 
Vallonia perspectiva Sterki. 
Santa Catalina Mountains: Marble Peak, in quartzite slide on 
south side, 8,000 ft., rare. Galiuro Mountains: Whitlock ranch on 
the northern slope. 
: PUPILLIDA. 
Pupoides marginata (Say). 
— Southern foothills of Rincon Mountains near the cave, Shaw’s 
Ranch, Station 148 (1918). 
Pupilla hebes (Ancey). 
Santa Catalina Mountains: Mt. Lemon, at head of the aspen 
gulch, and } mile below, on the new trail, 9,500 ft., and on the north 
side, 9,000 ft. Among those from the last locality, Station 37, 6 out 
of 128 were albinos. Station 22, ridge near Marshall Pass. It 
occurred in some abundance in all the localities except Station 22. 
Pupilla hebes nefas Pils. & Ferr. 
Pupilla hebes form nefas P. &. F., Proc. A. N.S. Phila., 1910, p. 135. 
Santa Catalina Mountains: Station 20, northeast side of Kel- 
logg Peak, 8,500 ft., Station 27, Bear Wallow, 214 specimens. Sol- 
dier Camp, 63 specimens. Station 21, Desert Laboratory Station, 
8,500 ft., 84 specimens. Station 22, ridge near Marshall Pass, rare. 
Station 29, Leaning Rock, south side Mt. Lemon, 9,500 ft., 15 speci- 
mens. Station 25, ridge of Marble Peak towards Mt. Lemon, 8,500 
ft., 57 specimens. Station 26, “quartzite” slide on Mt. Lemon, 
8,000 ft., 2 specimens. Station 28, marshy spring near trail, Mt. 
Lemon, 1 specimen. Rincon Mountains: Spud Rock; Catalina 
Saddle. 
P.h. nefas almost always has a small parietal tooth, and is usually 
a little longer than P. hebes, with between 6 and 7 whorls. It differs 
from P. syngenes by having no crest behind the lip, though there is 
usually a shallow, wide depression there. 
In only one of the numerous stations mentioned above were hebes 
and nefas found together. That was Station 22, where very few 
shells were taken. Lots from all of the other stations, frequently 
copious, were either all hebes or all nefas. 
Elsewhere P. h. nefas has been found only in two places in the 
Chiricahua Mountains, at elevations estimated from 7,500 to 8,000 
ft. It was not associated there with dextral hebes, which was found 
at another Chiricahua locality. We are now disposed to rank P. h. 
nefas as a well-marked subspecies. 
Chaenaxis intuscostata (Clapp). 
Southern foothills of the Rincons, near the Tucson-Benson high- 
way, near the cave, Shaw’s ranch, at about 3,500 ft. 
