A dark-brown shell of the subgenus Turricula (Klein), 

 somewhat resembling a small Pleurotoma. Of this I have two 

 specimens. 



Mitra cerithina nov. sp. PI. ii, fig. 19. 



-M. testa subelongata, fusiformi, cinerea, turrita, mtdticostata, 

 costis Icevibus, interstitih cancellaiis, bast producta. recurva-, 

 columella triplicata. 



Long. 9 mill., lat. 3 mill. 



Habitat ? 



Shell somewhat elongate, fusiform, of an ashy-grey colour, 

 turreted, many ribbed, the ribs being isift'ooth, the ittterstic'es 

 cancellated (not very deeply), recurved at the base, which is 

 produced, columella three-plaited. 



This small species is described from a dead shell, it is allied 

 to the preceding^ but differs by the base of the shell being pro- 

 duced and somewhat recurved, giving an angle to the shoulder 

 of the principal body whorl, as in M. {Thala) mirifica (Reeve). 

 The general aspect oi M. cerithina is that of a small member of 

 the Cerithidae, hence the trivial name. 



Mitra bela nov. sp. PI. ii, fig, 20. 



M. testa oblongd^acuminata, costis lavibus rotundatis decorata, 

 intersiitiis Icevibus, brunnescente, nitida, balteo nigra obscuro 

 infra suturas cingulata, apertura effusa, columella triplicata. 



Long. II mill., lat. 4 mill. 



Habitat ? 



Shell oblong, acuminate, with rounded smooth ribs, the 

 interstices between the ribs being likewise smooth, shining 

 brown, with a somewhat obscure black belt beneath the suture, 

 mouth effuse, the columella thrice-plaited. 



A pretty little shell, much like the small British Bela rufa 

 (Montagu), one of the Pleurotomidae. It probably belongs to 

 Volutomitra, and its locality is to be sought for in the Arctic or 

 Antarctic regions. 



