494 Zoological Society. 



MiTRA VENUSTULA. MUv. tesld ovatd, spird acuminaid, anfractibus 

 convexis, longitudinaliter granoso-costatis, vivide luteis, zonulis 

 angustis nigerrimo-castaneis duahus trihusve cingulatis ; columelld 

 quadriplicatd. 

 Conch. Icon., Mitra, pi. 26. f. 204. 



Hah. Island of Masbate, Philippines (found under stones at low 

 water) ; Cuming. 



The whorls of this species have not the same angular structure as 

 those of the preceding, nor are the ribs granosely pointed at the 

 upper extremity. 



Mitra flavescens. Mitr. testd ovatd, spird subacuminatd, an- 

 fractibus longitudinaliter costatis, costis superne subnodosis, liris 

 granosis decussatis ; flavescente, zond fused medio albilineatd 

 cinctd; columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 26. f. 207. 



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

 water) ; Cuming. 



Allied to the preceding species by its style of sculpture, but differ- 

 ing in form and pattern of colouring. 



Mitra variata. Mitr. testd ovatd, basi contractu, spird turritd; 

 anfractibus superne angulatis, longitudinaliter costatis, costis la- 

 tiusculis, obtuso-prominentibus, inter stitiis iransversim impresso- 

 striatis; luted, ustulato-fusco varie fasciatd et lineolatd; columelld 

 quadriplicatd. 

 Conch. Icon., Mitra, pi. 26. f. 209. 



Hab. ? 



This shell exhibits a beautiful variation of colour ; the ribs are not 

 crossed with granose ridges, like those of the Mitra concinna, crocata, 

 BXid flavescens, but have the interstices engraved with fine impressed 

 striae. 



Mitra affinis. Mitr. testd ovatd, spird acuminato -turritd ; an- 

 fractibus longitudinaliter ohtuso-costatis, costis liris planiusculis 

 transversis decussatis; aurantio-rubrd, fascia luteo-albicante cin- 

 gulatd ; columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 26. f. 211. 



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

 water) ; Cuming. 



The specific differences of this shell are not of an unimportant 

 character ; the cross ridges are somewhat flattened, the white band 

 is broader, and the granules are of the same uniform colour as the 

 ground. 



Mitra turben. Mitr. testd oblong o-ovatd, basi attenuatd, spird 

 obtuso-rotundatd, suturis subprofundis ; longiiuditialiter creberrim^ 

 plicato-costellatis, costellis interstitiisque iransversim impresso- 

 striatis; aurantio-lutescente ; columelld quinqueplicatd, plicis pro- 

 minentibus ; aperturd intus striatd. 

 Conch. Icon., Mitra, pi. 27. f. 213. 



Hab. Philippine Islands (found under stones at low water) ; Cu- 

 ming. 



