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Show 754 MR. G. B. SOWERBY ON N E W SHELLS. [Nov. 21, arranged in three bands ; spire acute, short, whorls concave, nearly smooth, last whorl biangulated. This interesting little Cone belongs to the rich collection of Dr Prevost, of Alencon. Apart from its somewhat stunted form, the delicacy of its markings and rows of gem-like granules, it is remarkable for the double angle at the top of the body-whorl. CONUS REFLECTUS, sp. nov. (Plate LXXV. fig. 6.) C testa pyriformi, antice granulata, postice lavi, ad angulum minutissime coronata, albida, rosea late bifasciata fasciis fusco nebulatis; spira modica, anfractibus concaviusculis crebre sulcatis; apice acuminato. Long. 25, lat. 15 mill. Shell pear-shaped, anterior portion granulated, otherwise smooth, very minutely coronated at the angle, whitish, with two broad bands of rose-colour clouded with brown; spire moderate, whorls rather concave, closely grooved ; apex acuminated. Specimen in the collection of Dr. Prevost. L I M A ZEALANDICA, sp. nov. (Plate L X X V . fig. 1 a, fig. 1 b.) L testa lata, crassa, subinflata, radiatim costata, -utrinque paululum hiante; latere antico oblique producto, late concavo-planulato, infra medium angulato, margine ventrah ad angulum acclivi; latere postico oblique rotundato; costis 18, regulan-bus, quadratim rotundatis, crassis, squamatis, interdum fulvo-rubescentibus ; interstitiis lavibus, concavis, costas aquantibus auriculis parvis declivibus ; umbonibus acutis incurvatis. Shell broad, thick, rather inflated, radiately ribbed, slightly gaping on each side; front side obliquely produced and concavely flattened, formino- an oblong lunule terminating below the middle in a decided angle-°the other side obliquely rounded ; ribs eighteen in number, rather square, thick, scaled, sometimes of a reddish-brown colour ; interstices between the ribs smooth, concave, equal in width to the ribs ; auricles small, sloping ; umbones acute, incurved. Hab. New Zealand. This species is well distinguished from its congeners by a oroad concave lunule, forming a straight outline to one side of the shell, terminating in an abrupt angle. Among recent species its nearest analogues are L. paucicostata (Sowerby) from the Red Sea, and L. multicostata (Sowerby) from Australia ; but it differs from both these in the characters above mentioned, and in the number of ribs being more than those of the former and less than those of the latter ; the ribs also are more elevated than either. There is a fossil species found in the Pliocene of N ew Zealand to which this is more nearly allied; but, upon comparison, I am convinced that it is distinct. All the species of Lima hitherto known being entirely white (with the exception of L. fasciata, which has very faint fulvous concentric bands), receiving first the coloured specimen of the new species I thought the colour might prove specific ; but I have since received a larger specimen m which there is no trace of colour; so that the coloured specimen |
