104 



DIVISION VII. Shell with the whorls longitudinally angulated on both 



sides. 



Scientific name. Locality. Scientific name. Locality. 



Scarabsaus, Asia, Amboyna, China. Afra, Goree. 



DIVISION VIII. Shell umbilicated, roundish, obtuse, diaphanous, brittle, 

 and aperture subtriangular. 



Ianthina, 



So. Seas, Madagascar. Globosa, 



Madagascar. 



DIVISION IX. Shell conical, obtuse, distorted, the side opposite the aper- 

 ture gibbous, aperture compressed. 



Lyonetiana, Isle of France. 



DIVISION X. Shell subumbilicated, pyramidal, and summit obtuse. 

 Epystilium, South Seas. Papilla, 



DIVISION XI. Shell ventricose, pellucid, and aperture ovate. 

 Family 1st. Imperforate. 



Consolidata, 



Decollata, 



Truncata, 



DIVISION XII. Turreted. 

 Family 1st. Aipex truncated. 



Surinam. 

 South of Europe. 

 St. Domingo. 



Calcarea, East Indies. 



Contorta plicata, Denmark. 



