CONTBNTS. 



[The present volume completes the account of American Bulimu- 

 lidte, with the exception of the toothed genera, Odontostotnus, 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 BULIMULINJK (continued). 

 Genus Drymcens Albers. 



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

 Species of Mexico and Central America, . . .29 

 Subgenus Leiostracus Albers, . . . . .90 



Subfamily OUTHALICINJE, ....... 99 



Genus OxystyJa Schliiter, . . . . . .101 



Antiilean and Floridian species, .... 105 



Mexican and Central American species, . . . Ill 

 South American species, ...... 132 



Genus Porphyrobaplte Slmttleworth, .... 149 



Genus Li'gmis Mont fort, . ...... 160 



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



Subgenus Corona Albers, . ..... 1T5 



Subgenus Hemibulimus Martens, .... 184 



Genus Orthalicus Beck, . . . . . . .186 



Subgenus Metoi thalicus Pilsbry, . . . .192 



Subfamily AMPHIBULIMIN^E, . . . . . .211 



Genus Simpulopsfs Beck, . . . . . .212 



Section Bulimulopsis Pilsbry ..... 220 



Subgenus Platysuccinea Ancey, .... 223 



Genus Gtzotis Shuttleworth, ...... 227 



Genus PfUella AVebb & v. Beneden, . . . .231 



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



Genus Amphibulima Lamarck, ..... 2i52 



Subgenus Rhodonyx Fischer, ..... 239 



Subgenus Pellicula Fischer, . . . . .241 



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



Dates of issue of vol. XII, ....... 258 



(iii) 



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