116 



PROCEEDINGS OF THE ACADEMY OF 



[Feb., 



The localities for T. ingersolli in Colorado have been given by 

 Henderson (I.e.). Specimens are in coll. A. N. S. 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, Cloudcroft, 

 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 5£. It does not occur in the Chiricahua Mountains. 



Thysanophora ingersolli meridionalis n. subsp. Fig. 24, D, E, F. 



Shell with a wider aperture than T. 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 4f. 



Chiricahua Mountains in Bear Park, Long Park, head of Cave Creek, 



Fig. 24. — A, B, C, Thysanophora ingersolli (Bid.), Mt. Mingus, near Jerome, 

 Arizona; D, E, F, T. i. meridionalis P. and F., Long Park, Chiricahua Moun- 

 tains, Arizona; G. H, I, T. i. convexior (Ane.), Weston, Oregon. 



