506 PROCEEDINGS OF THE ACADEMY OF [Nov.. 
varicose cylindric body, while in chiricahuana the duct is extremely 
long, swollen at the end. The proportions vary widely in the two | 
species, as follows: 
A. varicifera. A. chiricahuana 
Length of penis, epiphallus and flagellum, 37 to 44 mm. 73 mm. 
Length of spermathecaandduct,. . . 25to27 “ 56." 
PAGE OR VRSIHEE yr) Ahk Natl mid || BO aL aT Pade 
The size of the shells is about equal. It appears from this that 
A. varicifera is a simplified member of the A. levetter stock, while 
A. chiricahuana belongs to another group of species. 
The type locality of A. chiricahuana is Fly Park, Chiricahua Moun- 
tains. 
Extract from Mr. Ferriss’ Field Notes.—On the Cave Creek side we 
found A. varicifera larger than the lot from Wickersham’s Rock on 
the peak, and generally albino. Out of one hole containing 29, only 
two were dark colored. On the other side of the east fork of Cave Creek 
they were larger but all dark. On the south side of the range there is 
a strong tendency to albinism in the Ashmunellas, Sonorellas and 
Oreohelix. 
Ashmunella microdonta n. sp. Fig. 5. 
The shell resembles A. varicifera in general appearance, but differs 
by having fewer whorls, the last wider viewed from above; umbilicus 
much wider, exposing more of the penultimate whorl. The lip is 
toothless except for a very low vestige in the basal margin in some 
specimens; but there is a minute tubercular parietal tooth in over 
a ) 
7, 
Fig. 5. Asmunella microdonta. Cotype. ; 
half of those examined, while it is perceptible as a faint thickening 
in all. The shell is chestnut colored, usually with one or two varix- 
streaks on the base; lip white or with its upper half reddish-brown. 
Bata .. vik a Lee Ce 9.5 8.6 8.8 8.2 mm. 
(Di: ce re ER 8 2) 19 19 17 ge 
Whorls . ee sy: 54 54 5} OS 
