23 



I am inclined to believe that the variety viridiilus, Lam., should 

 become a synonym of this variety. 



The Mauritius seems to be the metropolis, almost, of the cones, 

 for they are found there in great numbers, both as regards species and 

 individuals. The specimens received from there seem to be in better 

 condition than those received from other localities. All of the species 

 enumerated above were received in considerable quantity. 



Family PLEUROTOMID^E. 



56. Surcula bijubata, Reeve. Common. 



57. Drillia sp. 



58. " (Clavus) echinata, Lam. Not common. 



59. Clathurella Robillardi, Barclay. 



Family CANCELLARIIDiE. 



60. Cancellaria (Trigonostoma) scalata, Sowb. Very 

 common. 



