1923] NATURAL SCIENCES OF PHILADELPHIA ra 
phd ddd 
= rin, Coyote 
Pablo la Jaro} / mae us 
ranch 9 Mounteins 
ea 
Jy ae 
LET NNO 
Mountains 
PU 
Baboquivary 
eee ee 
- See 
\ 
7 
oy ae \’ “y 
127 / \ z 
2 Cattle camp \\ a 
Sig , 
Li#é / 
COMMENT a alate rea Teas — 
i = 
B! ta bi 0) ig. Wa! 2) vy; fa M0! Uo ti a 1 ons 
Fig. 6.—Rincon between the Baboquivari and Coyote mountains. 
This species appears to have been first taken in the Coyotes by 
E. A. Goldman of the Biological Survey, whose specimens are 215129 
U.S. N. M., 4 dead shells, one in good condition. It was next 
found by J. A. G. Rehn, who took numerous examples in the 
main canyon of the Coyotes at between 3600 and 3750 ft., on 
August 5, 1916, in company with F. E. Lutz. His station is marked 
X in fig. 5. 
Kirr’s Peak AND ENvirons.—Stations 120-124, 147 for this 
species are in this region, located as follows: 
120. Base of a small outlier northwest of Kitt’s Peak. 
121. Middle one of three large canyons on the north side, among 
bowlders near foot of the mountain. 
122. About a mile up the canyon from 121, on a stream of living 
water. 
123. Near head of the stream at foot of cliffs, at about 5500 ft. 
elevation, under scattered rocks in oak brush, sticks and leaves. 
The type station for S. xanthenes. 
124. In a low hill, north of road, foot of Kitt’s Peak. 
147. Small hill about 50 ft. high, near Palo Alto cow camp. 
At Station 122 some individuals reach a large size, 23 to 26.5 
mm. diam. Small ones only were found at 123, the highest station, 
18.5 to 22 mm. diam. The few taken at 147 are similar. At the 
