Zoological Society. 479 



A most delicately sculptured shell, with somewhat the character 

 of the Mitra granulina about it. 



MiTRA DKCLivis. MUr. testd elongato-turritd, basi truncatd, spird 

 acuminata ; anfructibus supern> angulato-declivibus, Ixvibus, trans- 

 versim exiliii:iimr itnpressis ; cinereo-canied, epidermide niyerrimd ; 

 columella quadriplivutd. 

 Conch. Icon., Milra, ytl. G. f. 44. 



Hub. } 



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

 is no ajjpearance of transverse brown lines, the whorls are angularly 

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



Mitra cocci.vea. Mitr. testd elongato-fusiformi, spird acvminatd ; 

 anfractihus longitudinuliter obtuso-costatis, interstiliis transversim 

 elevato-striatis, anfractus ultimi costis subevanidis ; vivide cocci- 

 ned aut lutescente, balteo unico albo cingulatd ; columella quadri- 

 plicatd. 



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



Hub. 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 tumida. Mitr. testd abbreviato-fusiformi, spird brevi, apice 

 acuta ; anfructibus tumidis, superne pluno-angulatis, longitudinali- 

 ter rude costatis, costis ad unguium nodidoso-tumidis ; albidd aut 

 virescente, anfructibus ad angulum rufo tinctis, ultimo balteo nigra 

 latiusculo cinguluta ; columella tri- aut quadriplicatd ; aperturce 

 fauce nigricante-fuscd. 



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



Hub. 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 ohe- 

 siusculd, spird attenuatd ; anfructibus supeme angulatis, costis 

 latiusculis obtusis langitudinulibus et transversis decussatis, ad de- 

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

 apicem erosd, indutd ; columelld triplicatd. 



Conch. Icon., Mitra, pi. 8. f. 53, 



Hub. 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-iurritd ; 

 anfructibus ti-unsveisim elevato-striatis, longitudinuliter costatis, 

 costis confertis, anfractus ultimi subevanidis ; balteolis nigris duo- 

 bus in media cingulutis, supra cinereo-ulbidd, lined unicd fused 

 circum-ornatd, infra aurantid, intcrdum cinereo-viridescente tinctd, 

 apice fusco; columella quudriplicatd. 



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



