142 WEST AMERICAN SHELLS 
Dall, the False-toothed Snail. Figure 119 gives us 
two enlarged views of this shell, which really is 
only 14mm. in diameter. It is of a yellowish straw- 
color with but little striation. From White Oaks, 
New Mexico. 
Ashmunélla levettei, Bland, Levette’s Snail. 
This shell is umbilicated, thin, shining, translu- 
cent, oblique- 
ly striated, 
with seven 
whorls. Aper- 
ture with a 
trans verse 
parietal tooth, 
with teeth on 
Fig. 119,x 7 the lip also; 
peristome pale chestnut colored; diameter, 17mm. 
From near Santa Fe, N. M. 
Sonorélla hachitana, Dall, the Hachita Snail, 
has a large, depressed, polished shell, with a deep 
umbilicus. It is pale reddish purple in color, with 
a purplish brown band. The diameter is about 
one inch. This species comes from Arizona and 
adjacent regions, being found on the top of Hachita 
Grande Mountain, N. M., at an elevation of over 
8,000 feet. 
Sonorélla rowélli, Newe., Rowell’s Snail, is 
smaller than the last species. Its shell is whitish, 
with a single narrow, chestnut band. Aperture 
widely cireular, peristome white, its extremities 
approaching and joined by a eallus; diameter, 20 
mm. It lives in Lower California, also in Arizona 
and New Mexico. 
