1909.] NATURAL SCIENCES OF PHILADELPHIA. 505 
Ashmunella varicifera Ancey. Fig. 4. 
Polygyra chiricahuana, in part, Dall, Proc. U.S. Nat. Mus., XIX, pl. 32, 
figs. 9, 10, 12. 
A. chiricahuana var. varicijera Anc., Journ. of Malacology, VIII, Sept. 30, 
1901, p.77 (near Tucson, Cox). A. 1. heterodonta or chiricahuana, Pilsbry, 
Proc. A. N.S. Phila., 1905, p. 242, pl. 15, figs. 94, 95. 
_ The shell is depressed, the spire low, varying from convex to low- 
conoidal, the periphery of the last whorl situated above the middle, 
obtusely subangular in front. Color rather light-brown and opaque; 
or corneous-brown and somewhat transparent (sometimes pure white). 
Surface rather glossy, lightly marked with growth-lines and faint 
traces of incised spiral lines. Umbilicus rather narrow but open. 
Aperture oblique, at about 45° with the axis. Peristome rather narrow, 
Fig. 4. Ashmunella varicifera Ancey. 
reflexed, recurved at the edge, having a low, indistinct thickening of 
the inner rim of the outer lip, and sometimes the very slight indication 
of an outer basal tooth. 
At resting stages young shells form a callous thickening within the 
lip, which shows through as a radial streak in some adult shells. 
Alt. 8, diam. 164 to 17 mm.; whorls 53. 
LA ny 18, “ oe Oe 
South side of Miller Canyon near its head; Wickersham Rock, Miller 
Peak, and in the east fork of Cave Creek Canyon; also a mountain on 
the south side of the mouth of Ash Canyon. These localities, except 
the last, are indicated by three areas of vertical shading on the map. 
Miller Peak is about 9,800 feet high. 
This species has not been fully described before. The “varices” to 
which the name is due are only occasionally present in adult shells. 
They are also seen in A. chiricahuana, which is so similar that until 
now the Chiricahuan and Huachuean snails were supposed to belong 
to one species. The soft anatomy shows at once that we have to do 
with two species. A. varicifera has genitalia exactly like A. levettet 
except that the epiphallus is somewhat shorter. ‘The spermatheca is 
not differentiated from its duct, the whole form a long somewhat 
