REFERENCE TO PLATES. 



VOL. XVII. 



PLATE 1. 



FIGURE PAG1 



1, 3. Pseudotrochus alabaster Rang. After Semper x 



2. Pseudotrochus alabaster Rang. After Rang x 



4, 5. Pseudotrochus auripigmentum Rve. After Furtado. x 



6-9. Atopocochlis exarata Mull. After Furtado x 



(a, exit of vas deferens from the penis sheath. &, 

 entrance of v. d. into penis sheath, cd, vas defer- 

 ens. ce, ovisperm duct, ed, vas deferens. ga, al- 

 bumen gland, gp, sheath of the penis, gh, her- 

 maphrodite gland, m, retractor muscle, o, ovi- 

 duct, op, atrum. p, penis, sp, spermatheca. u, 

 uterus, v, vagina.) 



PLATE 2. 



10. Achatina welwitschi Morel. After Morelet 17 



11, 12. Achatina paivana Morel. After Morelet 17 



13, 14. Achatina tavaresiana Morel. After Morelet .... 21 



15, 16. Leptocala specularis Morel. After Morelet 74 



PLATE 3. 



17, 18, 19. Aehatina bayaona Morel. After Morelet 20 



20, 21. Achatina bandeirana Morel. After Morelet 19 



PLATE 4. 



22, 23. Achatina infrafusca Martens. Conch. Mitthedl. . 32 



24, 25. Achatina colubrina Morel. Voy. Welwitsch 27 



26. Achatina perfecta Morel. Voy. Welwitsch 15 



27. Achatina balteata Rve. C. Icon , 30 



(221) 



