1905.] NATURAL SCIENCES OF PHILADELPHIA. 257 
Neither is much like H. remondi conchologically ; but further informa- 
tion on both H. remondi and Leptarionta is needed. 
Sonorella hachitana (Dall). Pl. XVII, figs. 1-8. 
Epiphragmophora hachitana Dall, Proc. U. S. Nat. Mus., XVIII, p. 2, 1895; 
SSE. pi S38: 
Sonorella hachitana Dall, Pilsbry, Proc. Acad. Nat. Sci. Phila., 1900, p. 557 
(as type of Sonorella). 
S. hachitana Dall, Bartsch, Smiths. Mise. Coll., XXXXVII, p. 190, Pl. oils 
fig. 2 (shell), and Pl. 29 (apex), 1904. 
Probably includes as subspecies S. ashmuni Bartsch, l. c., p. 190, Pl. Sly 
fig. 5; S. nelsoni Bartsch, l. c., p. 191, Pl. 31, fig. 3, and S. goldmani 
Bartsch, l. c., p. 192, Pl. 32, fig. 6. 
This is a widely distributed species in central and southeastern 
Arizona and southwestern New Mexico. It varies in size, degree of 
depression, width of umbilicus, size of aperture, and in color-tone; also 
in some measure in the sculpture; but so multifarious are the connect- 
ing links that I do not now see my way to support the dismemberment 
proposed by Mr. Bartsch. It will doubtless be found useful to recog- 
nize by name a half-dozen or more local raccs. 
The internal anatomy of the types, from Hacheta Grande Mountains, 
Grant county, New Mexico, is not known, nor have topotypes been dis- 
sected. I have been able, however, to examine several specimens 
from other localities, which conchologically differ very little from the 
original lot of hachitana, some of which are before me. 
The name “hachitana” seems to be a perverted form of that of 
the locality, “Big Hatchet.” The Spanish name, locally in use, and 
appearing on most maps, is ‘‘ Hacheta Grande.” 
1. Filmore Canyon, Organ Mountains, New Mexico (Pl. XVII, figs. 
7, 8). A single specimen sent by Prof. Cockerell measures alt. 13.8, 
diam. 23.5 mm., umbilicus 3.2mm. The aperture is ample, 11.8 x 13.3 
mm., as in the large shells from Florida Mountains. This specimen 
has been referred by Mr. Bartsch to his S. nelsoni, which measured 
25.5 x 13.4, umbilicus about 4 mm., aperture 11.1 x 12.8 mm., and is 
said to differ from hachitana in being “more depressed and has a larger 
aperture.” 
The genitalia show that the specimen, while full grown, is not quite 
mature, the male organs especially being thread-like. The sperma- 
theca is globular, on a very slender duct. The specimen is No. 71,413, 
A.N.S. P. It has been referred by Mr. Bartsch to S. nelsoni. 
The jaw (Pl. XXIII, fig. 19) has eight narrow equal ribs. 
2. Florida Mountains, near Deming, Luna county, New Mexico. 
Mr. Ferriss states that these specimens were collected in a very barren, 
arid locality. Very large specimens were taken measuring 28.3 x 15.9 
