488 Zoological Society. 



This shell, at a glance, has very much the appearance of the Mitra 

 pulchella, but upon examination it will be observed that the dark 

 band which encircles the one is painted on the ribs, whilst in the 

 other it appears in the interstices. 



Mitra cavea. Mitr. testd ovatd, glabrd, longitudinaliter costellatd, 

 costeUis ohtusis ; cinereo-nigricunte, costis macularum albicantium 

 serie unicd ornaiis ; columelld quadriplicatd. 



Conch. Icon., Mitra, pi. 19. f. 149. 



Hab. ? 



The specimen here described, from the collection of Thomas Norris, 

 Esq., is the only example of the species I have seen. 



Mitra telescopium. Mitr. testd ovato-fusiformi, IcEvigatd, nitidd, 

 transversim punctato-striatd ; anfractibus contiguis, ultimo basin 

 versus siibcontracto, sutaris conspicuis, profwidis ; ccerulescente- 

 albd, anfractu ultimo in/erne, rufo-castaneo, spirce apice nigricante ; 

 columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 20. f. 80. 



Hab. Island of Ticao, Philippines (found on the reefs at low 

 w'ater) ; Cuming. 



This new and very characteristic shell exhibits the same peculiarly 

 contracted structure as the Mitra abbatis, and the whorls have the 

 same contiguous telescope-like appearance. 



Mitra ignobilis. Mitr. testd subobeso-fusiformi, basi leviter re- 

 curvd, spird acuminatd, transversim undique sulcata, sulcis con- 

 fertis, subsuperficiariis ; albicante, maculis grandibus vstulato- 

 fuscis seriatim nebulosd ; columelld sexplicatd, plicis injimis, 

 stibobscuris. 

 Conch. Icon., Mitra, pi. 20. f. 152. 



Hab. Island of Ticao, Philippines (found on the reefs at low 

 water) ; Cuming. 



In order not to confound this species with one of very similar ap- 

 pearance, the Mitra ustulata, it is important to notice that the sur- 

 face of the former is grooved throughout, whilst that of the latter is 

 very finely striated and marked with rather distant brown hair lines. 



Mitra DECirRTATA. Mitr. testd abbreviato-ovatd, subventricosd, 

 O'assd, solidd, spird brevi, apicem versus acutd; Itevigatd, inferne 

 sulcatd ; nigerrimo-fuscd, punctis albidis perpaucis prope basin, 

 Unedque albd conspicud infra suturas cinctd; columelld quadripli- 

 catd ; aperturd amp Id ; labro superne sinuato et contracto. 



Conch. Icon., Mitra, pi. 20. f. 154. 



Hab. ? 



A fine new species, of which I have seen several examples in an 

 excellent state of presei"V'ation. 



Mitra badia. Mitr. testd acuminato-ovatd, transversim subtilissimc 

 striaid ; undique badid ; columelld quadriplicatd, plica injimd sub- 

 obscurd ; aperturd breviusculd. 



Conch. Icon., Mitra, pi. 20. f. 157. 



Hab. ? 



