75 



DIVISION IX. Shell nearly entire, longitudinally or transversely ribbed 



and sub-umbilicated . 



DIVISION X. Shell spinous or rugged, and nodulous. 



Turbinellus, Amboyna. Muricata, Jamaica, Madagascar. 



Capitellum, Indian Ocean. Ceramica, Ceram, Indian Ocean. 



Rhinocerus, New Guinea. Globosa, 



DIVISION XI. Shell with a somewhat produced beak. 



Pyrum, Ceylon. Scolymus, Florida. 

 Gravis, Moluccas. 



