''%Y''] PROCEEDINGS OF THE NATIONAL MUSEUM. 439 



181. Purpura triangularis Blve. 

 = /'. Carolcnsis Reeve. 

 Charles Islaiid, (Carpenter. 



182. Purpura nucleus Brod. 

 Galapagos Islands, Carpenter. 



Genus CONCHOLEPAS Swainsou. 

 183. Concholepas peruvianas Lamarck. 

 Hood Island, Wiuimer. 



Genus MONOCEROS Lamarck. 



= Aca»thiua Waldbeim. 

 184. Monoceros grande Gray. 



Hood Island, Witniner; James and Indefatigable islands, A ?&a^ross; 

 Galapagos Islands, Carpenter; National Mnseum. 



185. Monoceros tuberculatum Gray. 

 Cliatliani Island, Jones. 



Subfamily Coralliophilin^E. 



Genus CORALLIOPHILA Adams. 

 Subgenus RHIZOCHILUS Steenstrup, 

 186. Rhizochilus parvus Snutli. 

 Hood I.sland, Wimmer; Charles Island, Petrel. 



187. Rhizochilus madreporarum Sby. 

 Hood I.sland, Wimmer. 



Suborder STREPTODONTA. 



SuperfaiTiily FTEN OGLOSS A. 



Genus SCALA Humphrey. 



188. Scala pompholyx Dall. 



"Kear the Galapagos" in 812 fathoms. 



Section CIRSOTREMA Morch. 



189. Cirsotrema diadema Sby. 



Hood Island, Wimmer; (ralapagos Islands, Carpenter. 



Family JANTIIIJ^ID^. 

 Genus JANTHINA Lamarck. 



190. Janthina fragilis Lamarck. 



=J, siriatiiJa Cpr. 

 ('liatham Island, Jones; Galapagos Islands, Wimmer. 



