146 PROCEEDINGS OF THE ACADEMY OF [Feb., 



Fig. 2 — S. micra. Detail of same specimen showing the epiphallus extended . 



Fig. 3— -S. micra. No 94,330. X 4. Penis normally retracted, with 

 detail of end of the papilla. 



Fig. 4 — S. virilis Pils. Specimen from Station 11, Cave Creek Canyon. 

 X 2. No. 94,332. 



Fig. 5 — Sonorella virilis leucura Pils. and Ferr. X 2. White Tail Canyon, 

 Station 4. No. 94,331. The twisted condition of the penis is an acci- 

 dental or individual peculiarity of this specimen. 



Fig. 6— S. virilis. X 2. Cave Creek, Station 13. No. 94,335. With 

 detail of opposite side of the vagina 



Plate VI — Figs. 1, 2, 3 — Oreohelix barbata Pils. An adult and two immature 



individuals from the head of Turkey Creek. 

 Fig. 4 — 0. barbata. Less fully scaled form with blunt periphery. Head 



of Rucker Canyon, Station 10 A. 

 Figs. 5, 6, 7 — 0. barbata minima Pils. and Ferr. Rucker Canvon, Station 



11JA. 



Plate VII— Figs. 1, 2, 3, 4 — Ashmunella lepiderma n. sp. White Tail Canyon, 

 Station 11. 

 Figs. 5, 6, 7 — .4. lepiderma. Station 17. 



Plate VIII — Figs. 1-8 — Ashmunella duplicidens Pils. 



Plate IX — Figs. 1, 2 — Ashmunella esuritor Pils. Near Barfoot Park, Station 



2. No. 92,205. Elevated specimen. 

 Figs. 3 — Pine Canyon, No. 97,930. Elevated specimen. 

 Figs. 4, 5 — Near Barfoot Park. No. 92,205. Depressed specimen. 

 Figs. 6, 7, 8— East side of Barfoot Park. No. 94,432. Diameter 16$ mm. 

 Fig. 9 — Ashmunella metamorphosa Pils. Aperture of type specimen. 



No. 88,885. 



Plate X — Fig. 1 — Ashmunella chiricahuana (Dall). Falls of Cave Creek. 



No. 97,427 A. N. 8. P. 

 Fig. 2 — Ashmunella esuritor Pils. E. side Barfoot Park. No. 94,432. 

 Fig. 3 — Ashmunella esuritor. Topotype. No. 92,205. 

 Fig. 4 — Ashmunella chiricahuana (Dall). Head of Cave Creek, near Long 



Park. No. 94,430. 

 Fig. 5 — Ashmunella esuritor Pils. E. side Barfoot Park. No. 94,432. 

 Fig. 6 — Ashmunella angidata Pils. Cave Creek Canyon. No. 87,020. 

 Fig. 7 — Ashmunella ferrissi Pils. Topotype. No. 97,925. 

 Fig. 8 — Ash?nunella duplicidens Pils. Head of Morse Canyon. 

 Fig. 9 — Ashmunella proximo emigrans Pils. Cotype. No. 99,604. 



Plate XI — Figs. 1, 2, 3, 4 — Holospira arizonensis Stearns. Topotypes from 



Dos Cabezas Cave. No. 99,700 A. N. S. P. 

 Figs. 5, 6, 7, 8 — H. arizonensis emigrans n. subsp. JHead of West branch 



of Big Emigrant Canyon. No. 99,701 A. N. S. P. 

 Figs. 9, 10, 11, 12 — H. arizonensis. ^Form from Station 2, Big Emigrant 



Canyon. No. 99,702 A. N. S. P. 



Plate XII — Figs. 1, 2 — Holospira cionella Pils. Two cotvpes. No. 87,117 



A. N. S. P. 

 Fig. 3 — H. cionella. Form from Goodwin Canyon. No. 99,710 A. N. S. P. 

 Figs. 4-8 — H. cionella. Forms from Bull Hill, near Fort Bowie. No. 99,709 



A. N. S. P. 

 Figs. 9, 10, 11, 12 — H. cionella. Forms from Limestone Mountain. No 



97,424, A. N. S. P. 

 Figs. 13, 14, 15, 16 — H . cionella. Forms from below Paradise. No. 99,726 



A. N. S. P. 



Plate XIII — Figs. 1, 2 — Holospira cionella intermedia P. and F. White Tail 

 Canyon, Station 4. No. 99,717. 



