VI CONTENTS. 



PAGE 



Genus ATOPOCOCHLIS Crosse & Fischer 218 



Genus PSEUDOTROCHUS H. & A. Adams 219 



Genus PERIDERIOPSIS Putzeys 241 



Genus LIMICOLARIA Schumacher 246 



Genus BURTOA Bourguignat , 298 



Genus METACHATINA Pilsbry 307 



Keference to plates: Urocoptidae. 311 



Megaspiridae 320 



Achatinidse 321 



Dates of issue of the parts of Vol. XVI 329 



