MELVILL : NEW SPECIES OF MITRA. 283 



Mitra caloxesta nov. sp. PI, ii, fig. 14. 



M. testa obovato fusiformi, spira acuminato-turrita, anfractibus 

 superne subrotundafis, parce costoso plicatis, interstitiis punc- 

 tato-striatis, phmibeo - virescente, anfractu ultimo fascia 

 angusta albida ornato, columella quadriplicata, apertura 

 nigrescente. 



Long. 16 mill., lat. 6 mill. 



Hab. : Andaman Isles. 



Shell obovate-fusiform, spire turreted, pointed, whorls some- 

 what rounded above, sparingly costoso-plicate, the interstices 

 punctato-striate, olive-green and lead colour, the last whorl 

 decorated with a narrow white band, columella four-plaited, the 

 mouth very dark within. 



An elegant little poHshed shell, quite unlike any other 

 member of the subgenus Turricula with which I am acquainted. 



Mitra chariessa nov. sp. PI. ii, fig. 15. 



M. testa fusiformi, spira elongata, subttirrita, anfractibus sub- 

 angulatis, infra sutura7>i plicatellis, longitudinaiiter crebris- 

 sime liratis, interstitiis clathratis, albida, pura, columella 

 quadriplicata. 



Long. 18 mill., lat. 6 mill. 



Habitat ? 



Shell fusiform, spire elongate, turreted, whorls somewhat 

 angled, delicately plaited beneath the suture, longitudinally very 

 frequently ribbed, the interstices latticed, colour pure white, 

 columella four-plaited. 



A remarkably beautiful shell, pure white with a very slight 

 pinkish tinge, of exquisite sculpture and texture. It is very 

 distinct from all the species known to me, and is a satisfactory 

 addition to the subgenus Costellaria (Swains). 



Mitra transenna nov. sp. PI. ii, fig. 16. 



M. testa ovato-turrita, spira acuta, albida, anfractibus transversini 

 impresso-striatis, longitudinaiiter crebrissime lii-atulis, liris 

 brunneo-ochraceis uniformibus, columella quadriplicata. 



Long. 19 tnill. lat. 8 juill. 



Hab. : East Indies. 



