REFERENCE TO PLATES. 359 



PLATE 51a. 



FIGURE. PAGE. 



[By error this number was duplicating in preparing the plates. 

 As the figures are entirely different, there need be no contusion in 

 actual reference from the text]. 



1-6. Ampelita xystera Val. (from no. 63,879 Acad. coll. 



Pilsbry, del .155 



7-12. Thersites (Rhagada) solorensis Mart. After Wiegm. 135 



PLATE 52. 



12. Cepolis (Coryda) alauda Fer. Pilsbry, del. . . .182 



13. Cepolis alauda, penis with flagellum. The thread-like 



retractor should pass over v.d. and insert on penis, 182 



14. Cepolis (Hemitrochus) varians Mice. Pilsbry, del., 184 



15. Cepolis (Plagioptycha) salvatoris Pfr. Pilsbry, del. 



16. Cepolis (Cysticopsis) cubensis Pfr. Pilsbry, del. 



17. Epiphragmophora cordovana Pfr. After Strebel, . 



18. 19, 20, 22. Cepolis (Eurycampta) bonplandi Lam. Pils 



bry, del. ....... 



21. Cepolis (Jeanneretia) parraiana Orb. After Poey, 



PLATE 53. 



185 

 187 

 197 



181 



180 



1. Helicosyla (Orustia) versicolor Mlldff. Shepperd, del. . 225 



2. Helicostyla (Helicobulinus) turbinoides Brod. Shepperd, 



del 227 



3. Helicostyla (Orthostylus) pithogaster Fe"r. After Hidalgo, 227 



4. Helicosyla (Canistrum) ovoidea Brug. Shepperd, del. . 230 



5. Helicostyla (Phengus) opalina Sowb. After Pfeiffer, . 230 



6. Helicosty la (Hypselosty la) connectens Mlldff. After Mlldff. 228 



7. Helicostyla mirabilis Fer. After Hidalgo, . . . 224 



8. Helicostyla (Chrysallis) chrysalidiformis Sowb. After Rve. 231 



9. Helicostvla (Prochilns) virgata Jay. Shepperd, del. . 231 



10. Helicostyla (Cochlodoyas) viridostriata Lea. Shepperd, 



del 225 



11. Helicostyla (Eudoxus) effusa Pfr. After Reeve, . .229 



PLATE 54. 



1. Helicosyla (Canistrum) stabilis Jonas. After Semper, . 230 

 2-4. Chlorrca benguetensis Semp. After Semper, . . 215 

 5. Helicostyla (Orustia) monticula Shy. After Semper, . 216 

 6-8. Helicostyla butleri Pfr. After Semper, . . .216 

 9. Helicostyla (Orthostylus) pithogaster Fer. After Semper, 217 



10. Helicostyla (Calocochlea) festiva Don. After Semper, 216 



11. Helicostyla (Eudoxus) regie Brod. After Semper, . 216 



12. Helicosty la (Calocochlea) pulcherri ma Sowb. After Semper, 216 



