Zoological Society. 265 



Conch. Icon., Mitra, pi. 33. f. 274. 



Hab. Islands of Ticao and Philippines (found under stones at low 

 water) ; Cuming. 



A pretty species, banded alternately with white and ashy grey. 



Mitra purpurata. Mitr. testd ovatd, utrinque attenuatd, spird 

 breviusculd, subturritd; anfractibus ad suturas piano -angulatis, 

 longitudinaliter costatis, costis numerosis, angustis, prominentibus, 

 interstitiis impresso-cancellatis ; fusco-purpured, zond angustd 

 albd cingulatd; columella quadriplicatd. 



Conch. Icon., Mitra, pi. 33. f. 275. 



Hab. Island of Capul, Philippines (found under stones at low 

 water) ; Cuming. 



The whorls of this shell being flatly angulated at the sutures, give 

 a turreted character to the spire. 



Mitra puella. Mitr. testd rotundato -ovatd, spird brevi, subob- 

 tusd, suturis impressis ; anfractibus transversim subtilissime stri- 

 atis, anfractds ultimi parte inferiori minute nodiferd ; aterrimd, 

 anfractuum parte superiori maculis niveis pyriformibus, concentric^ 

 dispositis, conspicue ornatd ; columelld triplicatd ; labro intus den- 

 ticulate. 



Conch. Icon., Mitra, pi. 34. f. 276. 



Hab. Island of St. Tliomas, West Indies ; Gruner. 



The pyriform white spots which encircle the upper portion of each 

 whorl exhibit a striking contrast with the jet-black ground of the 

 shell. 



Mitra gratiosa. Mitr. testd elongatd, subcylindraced, liris pro- 

 minentibus minutis creberrime decussatd ; fused; columelld quinque- 

 plicatd, labro subincrassato. 

 Conch. Icon.. Mitra, pi. 34. f. 277. 



Hab. Gallapagos Islands (found among coral sand at a depth of 

 about seven fathoms) ; Cuming. 



A narrow cylindrical shell, with beautifully decussated sculpture, 

 and of an uniform brown colour. 



Mitra mirifica. Mitr. testd elongatd, gracili, subcylindraced^ 

 basi recurvd, liris minutissimis creberrim^ decussatd; rosaced, 

 subpellucidd, zonuld angustd albidd cingulatd; columelld sexplicatd, 

 labro subincrassato. 

 Conch. Icon., Mitra, pi. 34. f. 278. 



Hab. Island of Capul, Philippines (found under stones at low 

 water) ; Cuming. 



The general aspect of this shell is very similar to that of the pre- 

 ceding species; upon examination it will be found however of a 

 thinner and more slender structure, whilst the sculpture is of a 

 smaller pattern, and the colour altogether different. 



Mitra inermis. Mitr. testd oblong o- ovatd, longitudinaliter cre- 

 berrime plicatd, basi sulcatd ; rufescente-fuscd,fascid albidd, fusco 

 subtilissime undulatd, cinctd ; columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 34. f. 279. 

 Ann. ^ Mag. N. Hist. Vol. xvi. U 



