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Show 638 MR. G. B. SOWERBY, JUN., ON NEW SHELLS. [May \7, Long. 11, diam. 5 millim. HaB. Port Blair, Andaman Islands {Major Wilmer). Resembling in texture the Mauritian C. scalata, but of a more acuminated form, the sutural depression being narrow and deep. The colour is light reddish brown within and without, slightly paler on the ribs and nodules. 7. OVULUM VIDLERI, n. sp. (Plate LVI. fig. 1.) Testa elongata, utrinque acuminata, transversim striata, cerasina, terminiBus vivide aurantiacis, dorso medio gibbosiusculo, levissime angulato, la?vigato vel obsolete costato ; apertura angusta, antice latior ; labium Iceve, antice subangulatum; columella callosa, po-stice conspicue uniplicata. Long. 21, diam. 7 millim. HaB. Monterey, west coast of America {Mr. Vidler). A n Ovulum of an elongated form, of a cherry-red colour, with bright orange extremities. The back is nearly smooth; and the ends are transversely striated. Several of the specimens brought by Mr. Vidler are smaller, smoother, and more slender than the one I have chosen as type. 8. CYPR^A SMITHI, n. sp. (Plate LVI. fig. 8.) Testa ovata, crassiuscula, umBilicata, pallidissime cinerea, minute fusco-flavescenti lenticulata, dorsi medio maculis duaBus suBqua-dratis castaneo-purpureis picta, lateribus albis rufo-fusco pun-ctatis, basi convexa, alba; apertura modica, postice arcuata ; denies labii circiter 16, breves, obtusi, albi; columella? circiter 19, tenues, rubro-fusci. Long. 19, lat. 10 millim. HaB. North-west coast of Australia. Specimen presented to the British Museum. The chief character of this species is to be found in the teeth, those of the inner lip or columella being more numerous and much thinner than those of the outer, and of a reddish-brown colour. The only other species presenting this character is G. pyriformis, which is much larger, more pear-shaped, and an inhabitant of the Ceylon coast. Looking merely at the back of the shell it would pass for one of the robust Australian forms of C.flmBriata (of which I consider C. macula of Adams a variety) ; but a glance at the mouth at once reveals the difference. I have pleasure in dedicating this species to Mr. Edgar Smith, of the Zoological Department, British Museum. P.S.-Since I read this paper, I have seen a shell in the British Museum (labelled "Port Essington") which leads me to consider Cypra?a smithi a variety of C. pyriformis. The shell is intermediate in size between the average C. pyriformis and the shell above described, and has the shape of the former with the white base of the latter. |