IV CONTENTS. 



Subgenus Promoussonius Pilsbry 230 



Ckryserpes Pilsbry 231 



Zoniferella Pilsbry 233 



Genus KHODEA H. & A. Adam 234 



OBELISCUS Beck 240 



Subgenus Protobeliscus Pilsbry 251 



Stenogyra Shuttleworth 258 



' ' Pseudobalea Shuttleworth 271 



tl Lyobasis Pilsbry 274 



Genus NEOBELISCUS Pilsbry 280 



Genus LEPTINARIA Beck 284 



Section Neosubulina E. A. Smith 287, 322 



Subgenus Ischnocion Pilsbry 287, 324 



Pelatrinia Pilsbry 287, 324 



Genus OCHRODERMA Ancey 325 



Section Ochrodermella Pilsbry 327 



Subfamily CCELIAXIN^E Pilsbry 330 



Key to genera of Cceliaxinae 330 



Genus CRYPTELASMUS Pilsbry 331 



THOMEA Girard 333 



PYRGINA Greef 334 



" DISTCECHIA Crosse 335 



" CCELIAXIS Adams and Angas. 336 



Family STREPTAXIDJE. 



Genus OBELISCELLA Jousseaume 100 



APPENDIX (Homoriis, Euonyma and Curvella) 338 



EEFERENCE TO PLATES. . . 341 



