1923} NATURAL SCIENCES OF PHILADELPHIA 71 
genitalia they do not differ from the smaller examples from “‘ Wild 
Pig Amphitheatre” (fig. 4). Measurements follow. 
Museum No. 118067 118049 118050 (deflecta), 
Penis 9 Co 7mm. — 
Penis-papilla 6 4 4.5 
Epiphallus fh 4 6.5 
Flagellum il oe, 1 
Penial retractor wea = 
Vagina 6 5 5.5 
Station (2 79 59 
Mile-wide = 
Copper camp > 
wr 69_ 
—— >= 
«88 
“be — 
S . ‘ 
i . ' 
ee bee 
Neste 
Ploor of-amphitheatr®. wean... 
Step. 
*niwaly COs ne NN 
Fig. 4.—Diagram of ‘Wild Pig Amphi- 
theatre,’’ Tucson Range, looking south, 
Fig. 3.—Southern end of the Tuc- showing approximate locations of collect- 
son Range. ing stations 63 to 85. Length about 1 mile. 
Sonorella sabinoensis deflecta n. subsp. 
An equally small form was taken at station 59, about 5 miles 
north of Sheep camp, in a quartzite outlier of the range westward 
and a twin outlier of Lime Butte. In form these shells are more 
depressed than S. s. tucsonica, the whorls are smaller in caliber, 
the aperture smaller. The last whorl descends rather deeply in 
front, while in tucsonica it descends but little. The color is paler 
than in the small tucsonica from the northern end of the Tucson 
Range. The genitalia (fig. 2b) appear not to differ. Measure- 
ments given above under No. 118050. 
Height 12, diam. 19.6 mm.; 43 whorls. 
Type no. 118050a, from Station 59 (1918). One specimen in 
the long series seen lacks the dark shoulder band. 
