CONTENTS. 



Family HELICID^E (subfamily Acavince, or Macroogona.) . . 1 



Bulimus vs. Strophocheilus 2 



Genus Strophocheilus Spix 5, 194 



Subgenus Borus Albers 10, 194 



Subgenus Dryptus Albers 37 



Subgenus Thaumastus Albers 43, 198 



Family BULIMULIDJE 62 



Genus Ptekocheilus Guilding 62, 198 



Subgenus Eurytus Albers 69 



Genus Auris Spix (Pachyotus of authors.) 95 



Subgenus Otostomus Beck 107 



Subgenus Eudolichotis Pilsbry 108 



Subgenus Gonyostomus Beck 121 



Genus Bulimulus Leach 125 



General classification of the Bulimuli 126 



Subgenus Bostryx Trosch. (Bulimuli with smooth apical 



whorls. South American.) 127 



Section Platybostryx Pilsbry 129 



Section Ataxus Albers 130 



Section Bostryx Trosch el 133 



Section Temesa H. & A. Adams 134, 200 



Section Geopyrgus Pilsbry 135, 200 



Section Geoceras Pilsbry 136 



Section Peronseus Albers 138 



Section Lissoacme Pilsbry 154 



Dates of Publication, parts 37-40 200 



Reference to Plates 201 



Index to Genera, Subgenera, etc 213 



[NoTK. The remaining subgenera of Bulimulus will be included in 

 Volume XI of the MANUAL.] 



(iv) 



