372 PROCEEDINGS OF THE ACADEMY OF [June, 
This species is somewhat related to S. dragoonensis, but differs 
by its smaller size, thinner shell, decidedly smaller umbilicus, and 
by having the last whorl densely hairy, the hairs extremely short 
and close. S. apache differs from S. dragoonensis rather conspicuously 
in soft anatomy. The penis is shorter with a differently constructed 
papilla; there is no flagellum; the vagina is much longer and is 
- strongly swollen at the base. The anatomical characters of both 
have been examined in several specimens from different stations. 
The delicately hairy periostracum will serve to separate S. apache 
from other species of the genus. It is an extremely distinct species. 
Its home is among the great crags around Cochise Stronghold, a 
favorite resort of the Apaches. Station 10 is some miles northward 
of the other stations and at a somewhat greater elevation. 
S. apache was found only in igneous or metamorphic rock, never 
in the limestone. It was not found sealed to the rock, nor were any 
white circles seen on the rocks it inhabits, thus differing from nearly 
all other Sonorellas collected by the authors. 
Other specimens, from Station 1, measure: 
Alt. 10.5, diam. 17.5 mm. 
“ec iG “ce 174 “ce 
“ce 9.2, igs 15 “cc 
“ec 8.8, 6c 14 (a3 
Station 1 is conspicuous from the hillside on the east side of the 
mouth of Cataract Branch, as a long, bare streak in the dense brush 
which clothes the slope below the crag at the west side, some distance 
up the ravine, and rather high on the side. One living shell and 
numerous ‘‘ bones” were found by quarrying in the heavy rock of the 
slide. More living shells were taken at Station 9, the type colony. 
The largest shell seen is a dead individual from Station 27, measur- 
ing 18.5 mm. in diameter. 
Oreohelix strigosa var. 
A young dead specimen was found at Station 2, under a stone, and 
two fragments of the last whorl at Station 13; both in the limestone 
region, but at very different elevations, Station 2 being only a hundred 
feet or so above the bed of Tweed Canyon, 13 on the highest peak 
of its rim. The largest fragment, half of the last whorl of an adult 
shell, has a diameter of 18.5 mm. It shows a slight peripheral angle, 
otherwise resembling O. s. depressa Ckll. 
This Dragoon species seems from the fragments to be a more 
depressed shell than the extinct Oreohelix of the Florida Mountains, 
but it may be the same as the Huachucan race. 
