1923] NATURAL SCIENCES OF PHILADELPHIA 103 
9. Sonorella cotis P. & F. No. 119038. Station 3 (1914). Whetstone 
ts. 
PiatE V.—Fig. 1.—Sonorella ambigua P. & F. No. 118108. Station 146, 
Cababi Hills. 
2. Sonorella ambigua P. & F. No. 118103. Station 146, Cababi Hills, 
3. Sonorella ambigua P. & F.. No. 118100. Station 137, Cababi Hills. 
4. Sonorella ambigua P. & F. No. 118078. Station 106. Bobb’s 
Butte. 
o eecorelta ambigua P. & F. No. 118077. Station 100, Roskruge 
ange. 
6. Sonorella ambigua P. & F. No. 118079. Station 101, Roskruge 
Range. 
7. Sonorella ambigua P.& F. No.118081. Station 99, Roskruge Range. 
8,9. Sonorella ambigua P. & F. No. 118098. Station 120, outlier, 
N.-W. of Kitt’s Peak. Penis and the same opened showing papilla. 
10. Sonorella ambigua P. & F. No. 118080. Station 93, Robles Hills. 
11. Sonorella berryi P. & F. No. 118086. Station 103, Roskruge Range. 
From a dry specimen, soaked up. 
12. Sonorella ambigua P. & F. No. 118084. Station 104, Table Top 
Mts., Roskruge Range. 
Pirate VI.—Fig. 1.—Sonorella ambigua P. & F. No. 118054. 
2. Sonorella ambigua P. & F. No. 118089. Station 127, Pictured rocks, 
101 miles west of Tucson. 
3-4. Sonorella ambigua P. & F. No. 118093. Station 118, Coyote 
ts. 
5. Sonorella ambigua P.& F. No. 118097. Station 130, Pictured rocks. 
6. Sonorella ambigua cyclostoma P. & F. No. 118096. Station 126, 3 
miles west of Comovo church. 
7. Sonorella_sitiens P. & F. No. 43723. Station 237, Clark’s mine 
canyon, Pajaritos. 
8. Sonorella odorata P. & F. No. 130844. Station 22 (1917), Spud 
Rock Ranger Station, east side Rincon Mts. 
9. Sonorella sitiens P. & F. No. 43740. Station 224. Pina Blanca 
canyon. 
0. Sonorella sitiens montezuma P. & F. No. 130628. Station 323. 
1. Sonorella sitiens comobabiensis P. & F. No. 118102. Station 1335 
S. end E. side of Quijotoa Range. 
Puate VII.—Fig. 1.—Sonorella binneyi imperialis P. & F. No. 118111. Sta- 
tion 151, Empire Mts. 
2. Sonorella baboquivariensis P. & F. No. 111557. Station 27 (1910), 
Baboquivari Mts. 
3. Sonorella baboquivariensis P. & F. No. 111551. Station 21 (1910), 
Baboquivari Mts. 
4, Sonorella b. depressa P. & F. No. 118059. Station 61, Tucson 
Range. 
5. Sonorella baboquivarienis depressa P. & F. No. 117519. Station 2, 
Baboquivari Mts. ; 
6. Sonorella baboquivariensis P. & F. No. 117528. Station 3. 48 
, 7. Sonorella b. depressa P, & F. No. 117527. Station 5, Baboquivari 
Mts. 
8. Sonorellab. depressaP.& F. No.118061. Station 58, Tucson Range. 
9. Sonorella b. depressa P. & F. No. 117527. Station 5, Baboquivari 
Mts. 
10. Sonorella b. depressa P.& F. No. 117522. Station 10, Baboquivari 
Mts. 
11. Sonorella xanthenes P.& F. No. 118095. Kitt’s Peak. 
12. Sonorella baboquivariensis var. 118085. Station 117 (1918), rincon 
of chief Pablo. 
