CONTENTS. 



PAGE 



Introduction : The Orthurethra vii 



Family FERUSSACID^E Bourguignat (continued) 1 



Genus C^CILIOIDES Herrmannsen 1 



GLESSULA von Martens 50, 320 



Appendices to Oleacinidce, Acliatinida, Ferussacida, 

 Bulimulida : 



Genus SPIRAXIS Ad Ill, 



VARICELLA HI 



STREPTOSTYLA HI 



EUGLANDINA Crosse & Fischer Ill 



POIRETIA 112 



ACHATINA Lamarck 113 



ARCHACHATINA Albers 113 



LEPTINARIA 114 



BOCAGEIA 114 



RUMINA Risso 114 



FERUSSACIA Risso 114 



HOHENWARTIANA BoUFg 114 



HEMIBULIMUS von Martens 114 



Index to Achatinidce, Oleacinida and Ferussacida 119 



Family PARTULID^E Pilsbry 155 



Genus PARTULA Ferussac 155 



Index to Partulida 322 



Explanation of plates 325 



(v) 







IB 



