50S 



PROCEEDINGS OF THE ACADEMY OF 



[Nov., 



of heterodonta is marked H on the map. Cave Creek Canyon, like that 

 of the same name in the Chiricahna range, has a large basin and many 

 branches. 



Ashmunella levettei ursina n. subsp. Fig. 7. 



A. levettei Pilsbry, Proc. A. N. S. Phila., 1905, p. 23S, pi. 15, figs. 72-78. 



The shell is like A. levettei, capacious and glossy. The aperture is 

 less obstructed by the teeth. The parietal tooth is smaller, straight, 

 not curving inward at the axial end, or almost imperceptibly so, and 

 without an outer branch running towards the upper insertion of the lip. 



Alt. 9, diam. 18, diam. aperture 8.5 mm.; whorls fully 6^. 



7.2 



16 mm.; whorls 6^. 



Fig. 7. Ashmunella levettei ursina. Type. 



Head of Bear Canyon, about 7,500 feet elevation. Types No. 

 87,089 A. X. 8. P. It also occurs in the head of Miller Canyon. In 

 Bear Canyon there are many beautiful albino specimens, occurring 

 with others of the normal chestnut color. The range of ursina lies 

 westward from that of heterodonta. 



This is the race formerly referred by us to typical .4. levettei. 



Ashmunella levettei (Bland). Fig. 8. 



Triodopsis levettei Bland, Annals of the New York Academy of Sciences, II, 

 1882, p. 115, cuts. Binney, Manual of American Land Shells, p. 385, 

 fig. 410. Gratacap, Bull. Amer. Mus. Nat. Hist., XIV, p. 383. 



The type specimen of this species (fig. 8) was supposed to come from 

 Santa Fe Canyon, New Mexico, but it is distinctly of Huachucan type. 

 The periphery is rounded. The glossy surface is marked with fine 

 growth-wrinkles, and on the last whorl very fine and very faint spiral 

 line-;. The parietal callus is distinct, but thin at the edge. The 

 parietal tooth is long, high, straight, but at the axial end it becomes 

 low and curves strongly inward. From the distal end of the tooth a 



