ZOOLOGY. MOLLUSCA. 171 



Cypreca oinerea, Gmel. 



Also occurs as a sub-fossil. ■ 



Trivia cinadTipunotata, Gray. 

 Bahamas. 



Trivia snffusa, Gray. 



Bahamas. 



I believe that these two forms are merely varieties of one 

 ami the same species, being connected by a number of inter- 

 mediate types. 



Cyphoma §ribbosa, L. 



Florida, Cuba. 

 Solium perdiz, L. 



W. Indies, Pacific Islands. 

 ITatioa oanrena, L. 



Florida, W. Indies, Costa Rica. 



The nidus of probably this species, which we found in the 

 Flatts Inlet, is a collar of lime-mud, in form very much like 

 that of Natica heros, of the east American coast. 



Natica lactea, Gaild. 



This species is very close to, if not identical with, Natica 

 Flamingiana, Reel., from the Feejee Islands. 



Natica Maroohinensis, Gmel. 



W. Indies, W. Africa, Sandwich Islands. 



Crepidula oonvexa, Say. 



Eastern United States. 



Two small specimens obtained through the kindness of Miss 

 A. Peniston, which are seemingly this species. 

 1 Crepidula fornioata, L. (young.) 

 Fhorns agglutinacs, L. 



This is probably a rare sliell. We obtained but a single 

 specimen from the rocks off Bailey's Bay. 



