350 PROCEEDINGS OF THE ACADEMY OF [May, 
Figs. 2-2e.—Ashmunella walkeri Ferriss. Florida Mts. 
Figs. 3-3c.—Sonorella hachitana flora n. subsp. Florida Mts. 
Figs. 4-4b.—Sonorella hachitana (Dall). Station 7. 
Puats VI—Figs. 1-ld.—Oreohelix hachetana n. sp. Cotypes. Station 11. 
Fig. 2.—O. h. cadaver n. subp. Type. Station 5. 
Fig. 3.—Oreohelix ferrissi morticina. Type. Station 5. 
Figs. 4, 4a, 4c.—Oreohelix ferrissi Pils. Shells denuded of the cuticle and 
cuticular processes. Station 3. 
Figs. 5-5c.—0O. ferrissi Pils. Cotypes. Station 3. 
Fig. 5d.—O. ferrissi Pils. Young specimen, showing the embryonic and 
13 neanic whorls. Station 3. 
Fig. 6.—Oreohelix hachetana. Embryonic and part of the first neanic whorls 
of a paratype. Station 11. 
Puate VII—Figs. 1-1d.—Holospira bilamellata Dall. Station 5. Topotypes. — 
Figs. 2-2b.—H. b. longa n. subsp. Cotype. Station 4. 
Figs. 3-3¢.—H. b. heliophila n. subsp. Cotypes. Station 1. 
Figs. 4, 4a.—H. b. insolata n. subsp. Cotypes. Station 6. 
Figs. 5-5¢c.—H. b. media n. subsp. Cotypes. Station 3. 
Figs. 6, 6a.—H. b. mearnsi Dall. Station 8. 
Figs. 7-7c.—H. crossei Dall. Station 11. Topotypes. 
