494 Zoological Society. 



MiTRA VENUSTULA. Mitv, tesld ovcitci, spird acuminatd, anfractihus 

 convexis, longitudinaliter yraaoso-costatls, vivide luteis, zonulis 

 angustis nigei-rimo-castaneis duabus tribusve cingulatis ; columelld 

 quadriplicatd . 

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



Hab. 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 supernc subnodosis, liris 

 granosis decussatis ; flavescente, zond fused medio cdbilineatd 

 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, hasi contractu, spird turritd ; 

 anfractihus supern'e angiilatis, longitudinaliter costatis, costis la- 

 tiusculis, obtuso-prominentibus, interstitiis transversim 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, 

 and Jlavescens, but have the interstices engraved with fine impressed 

 Itrise. 



. Mitra AFFiNis. 3Iitr. testd ovatd, spird acnminato -turritd ; an- 

 fractihus longitudinaliter obtuso-costatis, costis Uris planiusculis 

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

 gulatd ; columella quadriplicatd. 

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



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

 water) ; Cuming. 



The specific diflferences 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 ttjrben. Mitr. testd oblongo-ovatd, basi attenuatd, spird 

 obtuso-rotundatd, suturis suhprofundis ; longitudinaliter creberrime 

 plicato-costellatis, costellis interstitiisque transversim impresso- 

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

 minentibus ; aperturd intus striatd. 

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



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

 ming. 



