CONTENTS. 



[The present volume completes the account of American Bulimu- 

 lidce, with the exception of the toothed genera, Odontostomus, Anctus, 

 Tomigerus and Anostoma, which form a sub-family to be mono- 

 graphed in the next volume, which will be occupied chiefly with the 

 Australian and Oriental groups of Bulimulidce, completing the mono- 

 graph of this family.] 

 Family BULIMULID^E (continued). 

 Subfamily BULIMULIN^K (continued). 

 Genus Drymasus Albers. 



Species of the West Indies, Trinidad and Florida, . 1 

 Species of Mexico and Central America, . . .29 

 Subgenus Leiostracus Albers, . . . . .90 



Subfamily OKTHALICIN^:, ....... 99 



Genus Oxystyla Schliiter, - . . . . . .101 



Antillean and Floridian species, .... 105 



Mexican and Central American species, . . .111 

 South American species, ...... 132 



Genus Porphyrobaplie Sliuttleworth, .... 149 



Genus Liguus Montfort, . . . . . . .160 



Subgenus Liguus Montf., . ..... 161 



Subgenus Corona Albers, 175 



Subgenus Hemibulimus Martens, .... 184 



Genus OrthaKcus Beck, . . . . . . .186 



Subgenus Metoithalicus Pilsbry, . . . .192 



Subfamily AMPHIBULIMIN^E, 211 



Genus Simpulopsis Beck, . . . . . .212 



Section Bulimulopsis Pilsbry ..... 220 



Subgenus Platysuccinea Ancey, .... 223 



Genus Gceotis Shut tie worth, . . . . . .227 



Genus Peltella Webb & v. Beneden, . . . .231 



[Genus Cryptostrakon W. G. Binriey, . . . 232] 



Genus Amphibulima Lamarck, . . . . .232 



Subgenus Rhodonyx Fischer, ..... 239 



Subgenus Pellicula Fischer, ..... 241 



Explanation of plates, ........ 244 



Dates of issue of vol. XII, 258 



(iii) 



