116 



Scientific name. Locality. Scientific name. Locality. 



Amularis, Decussata, Barbadoes, America. 



Retorta, Mediterranean. Proboscidea, 



Cornucopia?, Mauritius in Stones. Protensa, Amboyna. 



DIVISON III. With a radiated border, and perforated disk. 

 Aquaria, Amboyna, Red Sea. 



