Zoological Society. 479 



A most delicately sculptured shell, with somewhat the character 

 of the Mitra granatina about it. 



MiTRA DECLivis. Mitr. testd elongato-turritd, basi truncatd, spird 

 acuminatd ; anfractibus superne angulato-declivibus , lavibus, trans- 

 versim exilissime impressis ; cinereo -earned, epidermide nigerrimd ; 

 columella quadriplicatd. 

 Conch. Icon., Mitra, pi. 6. f. 44. 



Hab. ? 



This shell appears to be quite distinct from the Mitra glabra ; there 

 is no appearance of transverse brown lines, the whorls are angularly- 

 bent next the suture, and the spire is more sharply acuminated. 



Mitra coccinea. Mitr. testd elongato-fusiformi, spird acuminatd; 

 anfractibus longitudinaliter obtuso-costatis, interstitiis transversim 

 elevato-striatis, anfractds ultimi costis subevanidis ; vivid^ cocci- 

 ned out lutescente, balteo unico albo cingulatd ; columelld quadri- 

 plicatd. 



Conch. Icon., Mitra, pi. 7. f. 49. 



Hab. Islands of Masbate and Luzon, Philippines (found on the 

 reefs at low water) ; Cuming. 



This species may be easily recognized by its peculiarity of colour- 

 ing, — ^bright scarlet, encircled by a simple white belt. 



Mitra tumid a. Mitr. testd abbreviato-fusiformi, spird brevi, apice 

 acuto ; anfractibus tumidis, superne piano -angulatis, longitudinali- 

 ter rude costatis, costis ad angulum noduloso-tumidis ; albidd aut 

 virescente, anfractibus ad angulum rufo tinctis, ultimo balteo nigro 

 latiusculo cingulato ; columelld tri- aut quadriplicatd; apertura 

 fauce nigricante-fuscd. 



Conch. Icon., Mitra, pi. 8. f. 51. 



Hab. New Holland. 



A few specimens of this peculiarly swollen shell were lately brought 

 from New Holland in H.M.S. Beagle. 



Mitra rupicola. Mitr. testd abbreviato-fusiformi, in medio obe- 

 siusculd, spird attenuatd ; anfractibus superne angulatis, costis 

 latiusculis obtusis longitudinalibus et transversis decussatis, ad de- 

 cussationem nodosis ; earned, epidermide fused, corned, crassd, ad 

 apicem erosd, indutd; columelld triplicatd. 



Conch. Icon., Mitra, pi. 8. f. 33. 



Hab. St. Elena, West Columbia (dredged from a rocky bottom at 

 the depth of fourteen fathoms) ; Cuming. 



A new and very distinct species, at present unique in the collec- 

 tion of Mr. Cuming. 



Mitra balteolata. Mitr. testd fusiformi, spird acuminato-turritd ; 

 anfractibus transversim elevato-striatis, longitudinaliter costatis, 

 costis confertis, anfractds ultimi subevanidis ; balteolis nigris duo- 

 bus in medio cingulatis, supra cinereo -albidd, lined unicd fused 

 circum-ornatdy infra aurantid, inter dum cinereo -viridescente tinctd, 

 apice fusco ; columelld quadriplicatd. 



Conch. Icon., Mitra, pi. 8. f. 54. 



