MUSEUM OF COMrAKATIVE ZOOLOGY. 21 



Family CYPRiEID^. 



Genus CYPKiEA Linne. 

 Cypraea cinerea Gmelin. 



Genus TRIVIA Gray. 



Trivia pediculus Linne.* 



Trivia suffusa Gray. 



Trivia aubrostrata Gray. 



Trivia nivea Gray. 



Trivia candidula Gaskoin. 



Trivia globosa Gray. 



Trivia quadripunctata Gray var. rotunda Kiener. 



Genus ERATO Risso. 

 Urato Maugeriae Gray.* 



Family TRIFORID^. 

 Genus TRIFORIS Deshayes, 



Section TRIFORIS s. s. 

 Triforis lilacina DalL* 



Section MASTONIA Hinds. 



(Subsection A, apex acute.) 

 Triforis perversa Linne var. nigrocindum Adams. 

 Triforis decorata Adams var. olivacea Dall.* 



(Subsection B, apex mammillary.) 

 Triforis turristhomae Orbigny. 



Section INELLA Bayle. 

 Triforis longissima DalL 

 Triforis triserialis DalL 

 Triforis triserialis var. aspera Jeffreys.* 

 Triforis triserialis var. intermedia Dall. 

 Triforis sarissa DalL 

 Triforis colon DalL 

 Triforis Rushii DalL* 



Section SYCHAR Hinds. 

 Triforis samanae DalL* 

 Triforis bigemma Watson. 



