1910.] NATURAL SCIENCES OF PHILADELPHIA. 123 
Twenty taken at random measure: 
Two lamelle: axial and parietal— 
Length 10, diam. 3 mm.; whorls 12. 
“i SU aes ol aaa ea 
“ce 8.6 (a9 3 (a9 (<9 Wik. 
ia 8.4, iz 3 “ce a9 103. 
(79 (eakcn “c 3 cc cc 104. 
One lamella, the axial— 
Length 9.8, diam. 3  mm.; whorls 113. 
pronase Ces ool Tia 
LS Lo XO le as PR alae 
eh OE COS AE a a 
a3 a (a3 3 ce cc 113. 
OR eo yeh AOe, 
a3 8.8, ce 3 ce ce 103. 
SES yas thet) eels: 
oe 8.5, ce 3 ‘c ce 104. 
(a3 8.4, ce 3 (a3 (as 104. 
“e 8.4, ce 3 a3 (a3 104. 
ce 8, ‘cc 3 ce ia 105. 
ins 8, cc 3 79 “cc 10. 
“cc Fiat iss 3 ce ce 93. 
6c ee cc 3 cc “cc 94. 
Goodwin’s Canyon, near Lawhorn’s ranch, not far south of Nine-mile 
Water Hole, is the locality of a small series taken by Mort Wien (pl. XII, 
fig. 3). They are decidedly wider than Fort Bowie cionella, and have 
either two or three lamellce in the few examples opened. It is apparent- 
ly a subordinate race of cionella. The largest and smallest measure: 
Length 11, diam. 3.5 mm.; whorls 123. 
tag ne) Sco fh TE. 
Some specimens of similarly wide shape, but with only the axial 
lamella, in a few opened, were taken by Mort Wien “‘a half mile from 
Dos Cabezas Cave.” 
Holospira cionella intermedia n. subsp. PI. XIII, figs. 1-14. 
The head and southern slope of White Tail Canyon are inhabited 
by a race closely related to C. cionella, but remarkably polymorphic. 
The internal lamellae vary from one to three, but in most colonies 
there are one or two, the former number predominating. Thesculpture 
