348 PROCEEDINGS OF THE ACADEMY OF [May, 
longer, but the papilla and epiphallus only slightly or not longer 
than in hachitana. 
Alt. 16, diam. 27, umbilicus 4 mm. 
120 specimens measure as follows, the upper line being diameters 
in Be the lower line the numbers of specimens of each size: 
27 237 24 24.5 25 25.5 26 26.5 27 27.5 2B 285 20 207 
a ISSO an 1S ie es SG aS 7 3 7 3 
The genitalia of S. h. flora (fig. 6, F, G) resemble the same organs 
in S. hachitana, except that the penis is decidedly and constantly 
longer, as are also the vagina and spermathecal duct. The penis- 
papilla is indistinctly annulate and tapers slowly to the apex. The 
penis-retractor is long and slender, attached to the apex of the penis, — 
and enveloping the base of the epiphallus. Measurements of the 
organs have been given on page 328. 
The pallial organs are much as in Sonorella optata, but there is no 
white thread defining the secondary ureter. 
The sole, in alcoholic examples, resembles that of Sonorella bicipitis. 
It is ochraceous in the middle, pale gray at: the sides. Back and 
flanks dark slate-gray, the tail fleshy-gray above, having an indis- 
tinct median line. . 
Jaw and teeth were described in a former paper of this series. 
Ashmunella walkeri Ferriss. Plate V, figs. 2 to 2e. 
This species was originally described from a few dead shells. We 4 
found it living in abundance by digging 
in the soil among the rocks where there 
was shade. It lives in families or 
to pull, scarcely any coming out entire. 
When they do, the shell is very light 
colored, pale ochraceous salmon or pale 
brown or entirely white. Old ones are 
Fig. 7.—sp., spermatheca. a little lustre. 
The genitalia (fig. 7) have no peculiar 
features. The ducts are rather short. Length of penis 3 mm.; 
epiphallus 14 mm.; vagina 2.5 mm.; spermatheca 10 mm. The 
atrium is well developed and the flagellum distinct, though short 
as usual in the genus. 
8 Except the largest and smallest, the measurements disregard fractions less 
than half a millimeter, being designed only to show the general size. 
sa icideach 
“pockets.” The snails are very hard i 
dull, but the best-preserved adults have =| 
SS AS OM 
SLM ITE, 
