IV CONTENTS. 



PAGE 



(Tornatelloides Pfeiffer) 191 



Genus Tornatellides Pilsbry 192 



Subgenus Waimea Cooke & Pilsbry 250 



Genus Tornatellaria Pilsbry 251 



Appendix : additions and corrections 271 



Explanation of Plates 274 



Dates of issue of the parts of Volume XXIII 302 



Index to Volumes XXI, XXII, XXIII .287 



