1910.] NATURAL SCIENCES OF PHILADELPHIA. 109 
A new figure is given, pl. X, fig. 6, representing a specimen from Cave 
Creek near Reed’s Mountain, No. 87,020. The penial retractor 
muscle is longer than in A. proxima and its allies. 
Ashmunella ferrissi Pils. Fig. 22. 
A. ferrissi Pils. Proc. A. N. S. Phila., 1905, p. 247, pl. 16, figs. 108-110, 113. 
The type locality is in the talus at the foot of Reed’s Mountain, at 
Station 11, about a half mile below Reed’s house, where it is found 
with A. chiricahuana, Sonorella virilis, ete. Additional specimens 
were taken here in 1906. The figures represent an elevated and a 
depressed specimen. 
Fig. 22.—Ashmunella ferrissi, Cave Creek, Station 11 (topotypes). 
The embryonic shell seems to comprise the first 13 whorls. The 
initial half whorl is smooth and glossy; then growth-strie begin below 
the suture, gradually extending over the whole width of the whorl. 
The third and fourth whorls are very minutely indistinctly marked 
with subregularly arranged points, as though. hairy in the immature 
stage, though none taken retain any hairs. The rest of the whorls are 
finely striate. The base also is marked with very fine, unequal growth- 
strie, and under a strong lens shows faint, extremely fine and close 
spiral striz. These are also faintly- visible in places on the upper 
surface. The carina first appears above the suture at the end of the 
second whorl in some examples, in others at the end of the third. 
There is considerable variation in size and degree of elevation. 
Three of the specimens taken in 1906 at the type locality measure: 
Alt. 6.2, diam. 12.5 mm. 
BRO We 11.8. |“ 
ae Gs )ces 10)... 36 
The punctation of the early neanic whorls, not noticed when the 
