MBLVILL— MAEINE MOLLUSCA. HI 



274. Mitra (Strlgatella) columhelliformis, Kien. 

 Loc. Coetivy I. 



An intermediate, between acuminata, Sw., and colwmhelliformls, occurred. Botli may 

 be extremes of one variable form. 



275. Mitra {Strigatella) fuscescens,~Peii^e. 

 Log. Cliagos Arcliii)clago. 



M. auriculoides. Reeve, seems synonymous. The headquarters of this species are 

 the Hawaiian Islands. 



276. Mitra {Strigatella) litterata. Lam. 

 Loc. Coetivy I. 



Seychelles : Praslin I. 

 Chagos Archipelago. 



277. Mitra {Strigatella) jyauperc^Ua, Lam. 

 Log. Coetivy I. 



Chagos Archipelago : Peros Banhos, Coin. 



278. Mitra [Costellaria) angulosa, Kiist. 

 Loc. Cargados Carajos, 30 fathoms. 



279. Mitra {Costellaria) arenosa, Lam. 



Log. Amirantes : Stations E 2, 29 fathoms, rubble and weed ; E 12, 32 fathoms, 

 coral-rubble bottom. 



Although the extremes differ, mainly in the few longitudinal ribs of 31. exasperata, 

 Rve., as compared with those of M. arenosa, Lam., yet most authors now agree in 

 joining the two species. 



280. Mitra {Costellaria) delicata, A. AA. 



Loc. Amirantes : Station E 5, 32 fathoms, sandy liottom with much Cymodocea. 

 Allied to bella, Pease, from the Hawaiian Islands, and dorothea;, Melv., from the 

 Marquesas I. 



281. Mitra {Costellaria) cineracea. Reeve. 

 Log. Cargados Carajos : Station B 2, 30 fathoms. 



282. Mitra {Costellaria) modest a, Reeve. 



Log. Amirantes : Stations E 6, 28 fathoms, E 9, 34 fathoms, E 12, 30 fathoms, mostly 

 coral-rubble. 



283. Mitra {Fusia) aureolata, Sw. 

 Loc. Amirantes : S. Joseph I., not adult. 



