1909.] NATURAL SCIENCES OF PHILADELPHIA. 497 
Patula s. concentrata [ = Oreohelix s. concentrata}. 
Cionella lubrica [ = Cochlicopa lubrica]. 
Several Huachucan species were figured by Mr. Paul Bartsch in 
his monograph of Sonorella, 1904, and S. dalli n. sp. was described. 
The seven species of snails mentioned above sum up all that was 
known of Huachucan mollusks prior to the visit of Mr. Ferriss in 1902. 
In 1904 the range was again visited,‘ and again in 1907 Messrs. Ferriss 
and L. E. Daniels made extensive collections. Dr. Henry Skinner, the 
well-known entomologist, made a useful collection of shells in Carr 
Canyon, in August, 1905, and Mr. C. R. Biederman has contributed a 
few species from the same place. 
The present report is based upon practically all of the material 
ever collected in the Huachucas. Through the unfailing kindness of 
Dr. Dall, the series in the National Museum has been examined. 
Dr. Gratacap has permitted a re-examination of the types of Ashmun- 
ella levettei; and Dr. Bartsch has assisted with various helpful services. 
HELICID. 
Genus SONORELLA Pils. 
The Huachucan Sonorellas are all distinct specifically from those 
of other ranges. So far as known anatomically, they belong to groups 
special to this range; hence speak for a long isolation. 
Omitting S. huachucana, which is unknown anatomically, the species 
of the Huachuca and Patagonia Mountains can be determined by 
this key: 
a.—Penis long (about 40 mm. in a shell 27 mm. diam.), with a short 
hollow papilla containing a tube; epiphallus long, 49-60 mm. ; 
Haselbammypreseniby (5a no. ue" <! | me apem cg Mole S. dalla. 
a!.—Penis and epiphallus short, the former containing a fleshy, cylin- 
drie papilla over half the length of penis; flagellum vestigeal 
or wanting. 
Vagina about as long as penis; spermatheca and duct about 
fouritimes aslong, 4. ws. see ot) Se POwella. 
b!—Vagina much longer than the penis; spermatheca and duct 
not differing greatly from vagina in length. 
c.—Penis 5 to 7.5, papilla 3.3 to 5 mm. long; upper part of 
vagina muscular, swollen, usually fusiform, 
S. granulatissima. 
c!—Penis 12 to 19, papilla 9 to 13 mm. long; vagina slender, 
with a small fleshy node midway, . . S. danielsi. 
b. 
4See Southwestern Shells, Nautilus, XVIII, Sept., 1904, pp. 49-52, and 
Mollusca of the Southwestern States, Proc. A. N. S. Phila., 1895, pp. 211-290. 
