240 PROCEEDINGS OF THE ACADEMY OF [Mch., 
lip. It differs from levettei in the smaller mouth, larger umbilicus and 
deeper constriction. Specimens measure: 
Alt. 7, diam. 15.2 mm.; width of mouth, outside, 7.3 mm. 
“ Od “ec 15.2 “ec ce ce cc fi “ce 
“ee 7.2, ce 152 ce cc “ cc 76 “cc 
“ce dis a3 15 ce ce ce ce ve “ec 
cc 6.3, (as 14 ‘c ce a3 ce 6.1 “ce 
cs 6.8, ce 13.8 as as a3 “e 6§ cc 
“ec 6.8, “c 14 cc ce (73 ce 6.7 (a4 
ce 6:3; ce 12 a3 ce cc 73 5.8 “ 
This form is about intermediate between levette: and angigyra, but 
it has some slight special characters of its own. They seem hardly 
sufficient to require that it be named. See Pl. XV, figs. 92, 93. 
Ashmunella levettei angigyra n. subsp. Pl. XIV, figs. 47-54. 
The shell is brown, smaller and more depressed than levette: obtusely 
but distinctly angular at the periphery. The surface of the post- 
embryonic whorls is smoothish, under the lens seen to be very closely, 
irregularly marked with minute growth-lines, giving it a silky luster, 
and the last whorl is often finely malleate spirally, as in A. levettei. 
Whorls 6} to 7, very closely coiled and slowly widening, all of them 
convex above. The suture descends rather abruptly to the aperture. 
Behind the outer and basal lips the whorl is rather deeply, angularly 
guttered. The back of the lip is creamy. Aperture very oblique, 
smaller than in A. levettei. The teeth are arranged as in levettei. The 
notch between the two basal teeth is wider than that between the outer 
basal and the tooth of the outer lip. The inner basal tooth is smaller 
than the outer. The cylindric umbilicus rapidly enlarges at the last 
whorl. 
Alt. 6.5, diam. 13.6 mm. 
os, he learn 
bc 6, 7: 13 ‘ 
Huachuca Mountains, in Ramsey or ‘“‘ Conservatory ’’ Canyon, near 
Fort Huachuca. Types No. 83,269, A. N.S. P., collected by J. H. 
Ferriss, 1902 (figs. 47-49). 
This form was also found in the drift-débris of Barbakomari creek, 
near Huachuca station. The same form was collected by Mr. Mearns 
some years ago, and then referred to levettet. 
It differs from typical A. levette: in being smaller, with more closely 
coiled whorls, the last one angular at the periphery. The aperture is 
smaller and therefore more filled by the teeth. It resembles A. angu- 
