INDEX TO GENERA AND SUBGENERA CON 

 TAINED IN VOL. XVII. 



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



Achatina Lam., I. Leptocallista Pils., 75. 



Achatinus Montf., I. Obeliscus auct., 192. 



Achatium Link, i, 3. Oncaea Gist, i, 71. 



Ampulla Bolt, i, 3. Pachyotus auct, 171. 



Archachatina Alb., 104. Parachatina Bgt, I, 5. 



Balfouria Crosse, 204. Petitia Jouss., 72. 



Bocageia Gir., 182, 191. Petriola Dall, 216. 



Bulimus auct, 171, 192, 212. Pintoa Bgt., 24. 



Callistopepla Anc., 125. Pseudoglessula Bttg., 156. 



Callistoplepa Anc., 125. Riebeckia Marts., 204. 



Ceras D. & P., 155. Rumina Risso, 212. 



Chersina Humph., i. Serpaea Bgt., i, 21. 



Chilonopsis F. de W., 171. Stenogyra auct., 204. 



Clavator Marts., 192. Subulina auct, 130. 



Cochlitoma Fer., 76. Subulona Marts., 138. 



Columna Perry, 120. Trichodina, Anc., 182, 216. 



Ganomidos d'Ailly, 125. Tripachatina Bgt., 5. 



Homorus Alb., 130. Urceus Klein, i. 

 Leptocala Anc., 72. 



(219) 



