246 EXPLANATION OF PLATES. 



FIGURE PAGE 



6, 7. Pupilla b. pithodes P. & F. Type. Black Mia., N. 



M. 115361 161 



8, 9. Pupilla b. charlestonensis P. Type. 115215 163 



10, 12, 13. Pupilla sonorana (St.). Cloudcroft, N. M. 



83351 163 



11. Pupilla muscorum xerobia Pils. Duran, N. M. Type. 



104005 158 



14. Pupilla muscorum var. White Oaks, N. M. 78721. . 158 



15. Pupilla sonorana (St.). White Oaks, N. M. 78720.. 163 



16. 17. Pupilla sterkiana (Pils.) . 60466 156 



18,19. Pupilla hebes (P. m. idahoensis H. & D.). St. 



Charles, Idaho 166 



PLATE 20. 



1,2. Pupilla muscorum (L.). Hunstanton, England. 66915. 173 



3, 4. Pupilla muscorum. Pensarm, N. Wales. 109431 . . . 173 



5, 6, 7. Pupilla muscoram. Calvados. 22704 173 



8. Pupilla muscorum mut. abbreviata Cl. After Clessin. 178 



9. Pupilla muscorum mut. pratensis Cl. After Clessin . . . 178 



10. Pupilla muscorum mut. elongata Cl. After Clessiu. . 178 



11. Vertigo eumicra Bgt. After Bourguiguat 233 



12. 13. Pupilla muscorum inops Reinh. After Reinhardt. 180 

 14, 15. Pupilla m. gabrielensis de Greg. After Benoit. . . 181 

 16, 17. Pupilla m. masclaryana Pal. After Paladilhe. . . . 176 

 18,19. Pupilla aucapitainiana Bgt. After Bourguignat. . 181 



20. Pupilla m. glis West. After Dean & Tomlin 177 



21. Vertigo eumicra Bgt. After Clessin 234 



22,23. Pupilla bigranata (Urn.). After Rossnmessler .. 182 



24. Pupilla neumeyeri (Kuester). After Kuester 188 



PLATE 21. 



I, 2. Pupilla signata (Mas.). Turkestan. 78397 194 



3. Pupilla cristata Mts. (= signata). After v. Martens. . 195 



4. Pupilla antinorii (Palad.). After Paladilhe 193 



5. 6, 7, 8. Pupilla interrupta Reinh. After Reinhardt . . 198 



5a. Pupilla interrupta. Profile of parietal lamella 196 



9, 10. Pupilla poltavica Bttg. After Boettger 197 



I 1. Pupilla triplicata (Stud.). Switzerland. 22721 ... 189 

 12, 13. Pupilla triplicata. Mt. Roland (Jura). 22719 . . 189 



14, 15. Pupilla saxetana Piaget. After Piaget 183 



16, 17. Pupilla alpicola Ch. After Charpentier 183l 



18. Pupilla alpicola Charp. After Piaget 183 



