Zoological Society. 57 



47. MiTRA DEALBATA, A. Adams. M. testd ovato-fusiformi ; 

 spird apice cancellato ; anfractibus planulatis ; suturd profundd, 

 alba, transversim sulcata, sulcis distantibus ; aperturd oblongd, 

 antice dilatatd ; columelld postice excavatd ; plicis sex ; labro an- 

 tice dilatato, intus lirato. 



Hab. ? 



This species somewhat resembles M. crenilabrU in form, but it is 

 much more slender, and the sculpture is different. 



48. MiTRA xoDLLiFERA, A. Adams. M. testd turritd.fusiformi; 

 spird quam apertura longiore; anfractibus, prope suturas,angulatis; 

 albidd, longitudinaliter plicatd, plicis, ad sutiiras, nodulosis, pro- 

 minentibus, distantibus ; transversitn liratd, interstitiis longitudi- 

 naliter striatis ; aperturd intus fulvd, postice angulatd; columelld 

 plicis quatuor ; labro margine jiexuoso. 



Hab. ? 



A small species, somewhat resembluig M. cymelium. Reeve, but 

 without the transverse black lines. 



49. MiTRA ^Iari^, a. Adams. M. testd ovato-conicd ; spird 

 acuminata ; anfractibus planis, cingulis tribus, transversis, acutis, 

 elevatis, interstitiis longitudinaliter profundi sulcatis, instructis ; 

 postice albd, antice hepaticd, reticulationibus albis punctisque rufo- 

 fuscis, ornatu ; anfractu ultimo, sulcis transversis, interstitiis 

 simplicibus ; columelld plicis quinque instructd ; labro intus sul- 

 cata, margine crenulato. 



Hab. Eastern Seas. 



Somewhat Uke M. incisa, bat of very different form and colour. 



50. MiTRA PUSIL.LA, A. Adams. M. testd ovato-fusifo)~mi; spird 

 iurritd, elongatd ; anfractibus subrotundatis ; albidd, fascia latd 

 transversd, carneold, antice ornatd ; longitudinaliter costatd, costis 

 regularibus, eequalibus, subconfertis, interstitiis transversim valde 

 sulcatis ; aperturd brevi ; columelld plicis quatuor. 



Hab. ? 



A small species, with a single, transverse, faint pink band at tHe 

 fore part of the last whorl. '" 



51. MiTRA COLUMBELLINA, A. Adauis. M. testd ovato-fusifor- 

 mi ; spird brevi, acutd ; anfractibus subrotundatis, albo castaneoque 

 concinne pictd, transversim evanide sulcatd ; aperturd ovato-ob- 

 longd, antice dilatatd; columelld plicis quatuor; labro intus Icevi. 



Hab. ? 



This species is very prettily painted with white and dark chestnut- 

 brown, and in form somewhat resembles a Columbella. 



52. MiTRA Philippinarum, a. Adams. M. testd ovato-fusi- 

 formi; spird brevi, acuminatd ; anfractibus planulatis, cinered, 

 flammulis rufo-fuscis, longitudinalibus , variegatd; transversim 

 sulcatd, sulcis regularibus, subdistantibus, profundis ; aperturd 

 Hneari- oblongd, intus fused; columelld plicis sex ; labro margine 

 albo, crenato. 



Hab. Philippines. 



