140 



44. MiTRA CRENiLABRis, A. Adams. M . testd fvsiformi ; spird 

 aperturam cequante ; anfractibus planis ; fulvd, longitudinaliter 

 substriatd, transversim sulcatd ; aperturd oblongd, antice dilatatd ; 

 columelld plicis quatuor, antice incurvatd ; labro, in medio, recto, 

 margine crenato et incrassato. 



Hab. ? 



This Mitra resembles in many particulars M. fulva, Reeve, but in 

 all the specimens I have seen the outer lip is thin and smooth in that 

 species. 



45. Mitra castanea, A. Adams. M. testd ovato-fusiformi ; 

 spird productd ; anfractibus rotundatis ; castaned, nitidd, trans- 

 versim punctato-striatd; aperturd quum spira breviure, antice dila- 

 tatd; columelld plicis quinque. 



Hab. ? 



This species most closely resembles M. badia. Reeve, but the 

 whorls are rounded, and it differs in other particulars. 



46. Mitra dichroma, A.Adams. M. testd ovato-fusiformi ; spird 

 acuminatd; anfractibus planis ; suturd canaliculatd, antice castaneo- 

 fuscd, postice albidd ; longitudinaliter substriatd, transversim sul- 

 catd, sulcis antice profundis , aperturd antice dilatatd ; columelld 

 plicis quinque instructd, antice productd ; labro intus lirato, mar- 

 gine crenulato. 



Hab. ? 



47. Mitra dealbata, A.Adams. M. testd ovato-fusiformi; 

 spird apice cancellato ; anfractibus planulatis ; suturd profundd, 

 albd, transversim sulcatd, sulcis distantibus ; aperturd oblongd, 

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

 tice dilatato, intus lirato. 



Hab. ? 



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

 much more slender, and the sculpture is different. 



48. Mitra nodulifera, A. Adams. M. testd turritd,fusiformi; 

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

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

 minentibus, distantibus ; transversim liratd, interstitiis longitudi- 

 naliter striatis ; aperturd intus fulvd, postice angulatd; columelld 

 plicis quatuor ; labro margine flexuoso . 



Hab. ? 



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

 without the transverse black hues. 



49. Mitra Mari^, A. Adams. M. testd ovato-conicd ; spird 

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

 elevatis, interstitiis loiigitudinaliter profundi sulcatis, instructis ; 

 postice albd, antice hepaticd, reticulationibus albis punctisque rufo- 

 fuscis, ornatd ; anfractu idtimo, sulcis transversis, interstitiis 



