98 PEKOY SLADEN TEUST EXPEDITIOIS'. 



147. Cyprcea vilellus, L. 



Loc. Cliagos Archipelago : Peros Baiihos, Coiu. 



Including a very gigantic example measuring 3^x2 inches. 



148. Cyprcea walker i, Gray. 

 Loc. Cargados Carajos. 



Amirantes : Stations E 5, 32 fathoms, E 9, 31 fathoms, E 13, 20-25 fathoms. 

 Seychelles : Station E 7, 31 fathoms, sand and weed (sp. juv.). 

 An uncommon and heautiful species, some very select examples having been dredged, 

 especially in the Amirante Islands. 



119. Cyprcea ziczac, L. 



Loc. Amirantes : Station E 9, 31 fathoms. 



150. Cyprcea (Trivia) globulus, L. 

 Loc. Amirantes: S. Joseph I. 



Chagos Archipelago. 



151. Cyprcea [Trivia) *wsec^«, Mighels. 

 Loc. Amirantes ; S. Joseph I. 



Coetivy I. 

 This is C. hordacea, Kiener (Cypra^a, p. 119, tab. liv. fig. 5). 



152. Cyprcea [Trivia) nucleus, L. 

 Loc. Coetivy I. 



153. Cyprcea [Trivia) oryza. Lam. 

 Loc. Amirantes : S. Joseph I. 



Coetivy I. 



151. Cyprcea [Trivia) staphylea, L. 



Loc. Coetivy I. 



Chagos Archipelago : Diego Garcia. 



A small variety only from the latter locality. I consider C. limacina, Lam., but, at 

 best, a subspecies, Hidalgo favouring it with full specific rank. The extremes may be 

 dissimilar, but every form of intermediate occurs. 



155. Amphiperas dentatus (Ad. <fe Reeve). 

 Loc. Providence I. 



156. Amphiperas ovum (L.). 

 Loc. Seychelles : Praslin I. 



