explanation of plates, vol. 28. 213 



Plate 12. 

 figures page 



1-3. Dimorphoptychia arnouldi (Mich.). After 



Sandberger 11 



4-6. Kanahohelix kanabensis (White). After 



White 11 



7-8. Pseudostrohilus riethmulleri Oppenh. After 



Oppenheim 9 



9. Strohilops hubhardi A. D. Brn. Lake Helen. 



65371 50 



10. Ohhi7iula anthracophila Stache. After 



Stache 10 



11-13. Strohilops romani Wenz. Hauterive. 2800 8 



14-16. Strohilops polyptychia Mlldff. 114168 .... 52 



Plate 13. 



1-7. Strohilops wenziana Pils. Type and para- 

 types 60 



8-11. Strohilops piratica Pils, Type and para- 

 types 58 



Plate 14. 



1, la, 2, 3. Fauxulus hurnupianus Pils. Type and 



paratypes, 144265, 144264 73 



4, 4a. Fauxulus falconianus Pils. Type. 145477. 75 



5, 6. Gastrocopta thomasseti Pils. Type. 145474 71 



Plate 15. 



1. Vertigo wheeleri Pils. Type 96 



2. Vertigo loessensis Bkr. {=V. elatior St.). 



Paratype, 145107 93 



3. Gastrocopta pilshryana Sterki (Holotype of 



Pupilla stoneri Cham. & Jones) 64 



4. Sterkia c. martiniana Pils. Type 110 



5. Vertigo gouldii paradoxa St. Newfoundland. 



150044 95 



6. Pupisoma comicolense H. B. B. Type .... 115 



7. Vertigo californica guadalupensis Pils. 



Type 97 



8. Vertigo californica catalinaria Pils. Type 97 



9. Vertigo degeneris Pils. Type. Guadalupe 



Island. 141405 98 



10. 11. Pupilla guadalupensis Pils. Type and 



paratype. 141452 83 



12. Pupilla goniodon Pils. Type. 141410 82 



