INDEX TO GENERA AND SUBGENERA CON 

 TAINED IN VOL. XVII. 



[The names of synonyms are distinguished by Italic type.] 



Achatina Lam., i. 

 Achatinus Montf., I. 

 Aclmtium Link, I, 3. 

 Ampulla Bolt, i, 3. 

 Archachatina Alb., 104. 

 Batfouria Crosse, 204. 

 Bocageia Gir., 182, 191. 

 Bulimus auct, 171, 192, 212. 

 Callistopepla Anc., 125. 

 Callistoplepa Anc., 125. 

 Ceras D. & P., 155. 

 Chersina Humph., i. 

 Chilonopsis F. de W., 171. 

 Clavator Marts., 192. 

 Cochlitoma Fer., 76. 

 Columna Perry, 120. 

 Ganomidos d'Ailly, 125. 

 Homorus Alb., 130. 

 Leptocala Anc., 72. 



Leptocallista Pils., 75. 

 Obeliscus auct., 192. 

 Oncaea Gist, i, 71. 

 Pachyotus auct., 171. 

 Parachatina Bgt., I, 5. 

 Petitia Jouss., 72. 

 Petriola Ball, 216. 

 Pintoa Bgt., 24. 

 Pseudoglessula Bttg., 156. 

 Riebeckia Marts., 204. 

 Rumina Risso, 212. 

 Serpaea Bgt., i : 21. 

 Stenogyra auct., 204. 

 Subulina auct., 130. 

 Subulona Marts., 138. 

 Trichodina, Anc., 182, 216. 

 Tripachatina Bgt., 5. 

 Urceus Klein, i. 



(219) 



