116 PROCEEDINGS OF THE ACADEMY OF [Feb., 
The localities for 7’. ingersolli in Colorado have been given by 
Henderson (/.c.). Specimens are in coll. A. N. 8. from Field, British 
Columbia (Stew. Brown). In New Mexico we have seen it from Sapello 
Canyon at Beulah (Cockerell); Sandia Mountains near Albuquerque 
(Miss Maud Ellis); Bland (Ashmun); James Canyon, Clouderoft, 
Sacramento Mountains (Rehn and Viereck). In Arizona we have it 
from Bill Williams Mountain near Williams (Ferriss and Pilsbry) 
and the top of Mt. Mingus, near Jerome (Ashmun). A specimen from 
this place is drawn in figs. 23, a, b, c, alt. 2, diam. 4.4, width of umbilicus 
1.15 mm., whorls 54. It does not occur in the Chiricahua Mountains. 
Thysanophora ingersolli meridionalis n. subsp. Fig. 24, D, E, F. 
Shell with a wider aperture than 7’. ingersolli; whorls not quite as 
closely coiled, scarcely 5 in a shell of over 5 mm. diam.; umbilicus 
about one-fourth the total diameter; spire nearly flat. Alt. 2.3, diam. 
5.2, width of umbilicus 1.3 mm., whorls 43. 
Chiricahua Mountains in Bear Park, Long Park, head of Cave Creek, 
Fig. 24.—A, B, C, Thysanophora ingersolli (Bld.), Mt. Mingus, near Jerome, 
Arizona; D, E, F, 7. 7. meridionalis P. and F., Long Park, Chiricahua Moun- 
tains, Arizona; G, H, I, 7. 7. convexior (Anc.), Weston, Oregon. 
