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Show 1878.] MR. G. B. SOWERBY, JUN., ON N E W SHELLS. 797 culatis; spira elata, conica, gradata ; anfractibus 11, leevibus, leviter coronatis; apice acuto, fusco; apertura angusta, fusco tincta. Long. 31, maj. lat. 14 mill. ; spira alt. 10 mill. A very neatly marked Cone, allied to C. mahogani, C. ximines, and C. tornatus, but perfectly distinct, both in form and markings. Hab. Panama 1 (ex coll. Sir E. Belcher). MITRA BERTHS, n. sp. (Plate XLVIII. fig. 11.) M . testa angulato-fusiformi, solidiuscula, cinerea, longitudinaliter striata et valide plicata, transversim leviter sulcata, antice recurva, transversim valide costata; spira acuminato-turrita; anfractibus 10, superne angulatis, ad angulum bicarina-tis, supra angulum concavis, in medio balteolis nigris duobus linea unica fusca superne circumcinctis; apice nigro-fusco ; apertura elongata, intus fusco cincta ; columella quadri-plicata, plicis duplicatis; laibio externo leviter sinuato, crassiusculo. Long. 32, maj. lat. 13 mill., spira alt. 13 mill. Hab. China Sea (Sir E. Belcher). Several specimens of this pretty shell were found in the above collection, and seem to have been hitherto unnoticed, although the species is very distinct and easily distinguishable from its congeners. MITRA FULVOLIRATA, n. sp. (Plate XLVIII. figs. 9, 10.) M. testa fusiformi, solidiuscula, cinerea, fusco-purpureo late fulvo tincta, utrinque fuscata, antice contracta, leviter recurva; spira acuminato-turrila; anfractibus 10, convexiuscu-lis, superne obtuse angulatis, transversim leviter sulcatis, costatis, costis subangulatis, obtusis, fulvescentibus apertura elongata, fauce leevi, fusco-purpurea ; columella quadri-plicata, plicis obtusis, quadratis ; labio externo simplici. Long. 27, maj. lat. 9 mill., spira alt. 12 mill. Hab. China Sea (Sir E. Belcher). Several specimens presenting scarcely any variation were found in the above collection. Although a species of no very striking character, I cannot identify it with any hitherto described. MITRA ACUTA, n. sp. (Plate XLVIII. figs. 7, 8.) M . testa angulato-fusiformi, albida, interdum purpureo tincta, punctata, castaneo unifasciata, vel flammulata; spira acutissima anfractibus 10, transversim carinatis,- carinis numerosis, acutissimis ; interstitiis concavis, interdum lavibus, cancellatis; apertura subangusta, intus alba, leevi; columella quinqueplicata, plicis acutis ; laibio externo vix arcuato, crenulato. Long. 20-23, maj. lat. 8-9 mill. Hab. China Sea (Sir E. Belcher). A number of specimens of this species were found in the above collection. They vary considerably in sculpture, some being smooth |