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Show 602 MR. E. A. SMITH ON SHELLS [June 2, Aperture elongate-pyriform, acute above, effuse at the base. Outer lip thin, sharp, arcuate, and prominent at the middle. Columellar margin rather thickly covered with callus, united above to the outer lip. Length of two specimens, consisting of five whorls, 30 and 25 millim.; diameter 11 and 10|; aperture 14 and 12 long, 6 and 5 wide. iii Hab. " Imbedded in a dark calcareous loam exposed m the banks of a large stream at Sulagina, north coast of San Christoval" (Guppy). . This species has a good deal the form of M. queenslandica, Smith, but has a more turreted spire, colour-markings, and more distinct spiral sculpture. 45. MELANIA UGIENSIS. (Plate XXXVII. fig. 4.) Shell subulate, acuminate, beneath the epidermis (which is wanting in the specimens at hand), of a dirty pale livid or purplish tint. Whorls probably about 14 in number; the eleven remaining are a little convex, rather slowly enlarging, and sculptured with close-set obliquish fine riblets which are crossed by crowded spiral striae. Last whorl large, with the riblets rather obsolete below the middle, and very close together, much more numerous than those upon the upper whorls. Aperture obliquely pear-shaped. Length 25 millim., diameter 8 ; aperture 8| long, 4 | wide. Hab. From a stream in Ugi. Of this species only three dead specimens were obtained. They were all completely covered with a hard thickish coating of lime, so that no part of the sculpture was visible. This earthy covering was easily chipped off, and the ornamentation was revealed in most perfect condition. It is remarkable that the fine close riblets exist not only on the upper whorls but continue to the last, and are cut across by the spiral striae, producing an almost granular aspect. 46. MELANIA SANCT^E ANNJE. (Plate XXXVII. figs. 5, 5 a.) Shell small, acuminately pyramidal, somewhat eroded towards the apex, covered with a yellowish-olive epidermis, and sometimes marked with a few indistinct reddish irregular spots and lines near the middle of the body-whorl. Whorls 5-6 remaining, flattish at the sides, divided by a slightly oblique distinct suture, all with the exception of the last one or two more or less distinctly longitudinally finely plicate ; the plicae are more conspicuous in some specimens than in others, being at times entirely eroded. The other sculpture consists of fine lines of growth and a few rather distant spiral striae, which cut across the incremental lines and produce a puckered appearance. Aperture elongate, pyriform, pale bluish within. Length of specimen consisting of six whorls 13 millim., diameter 5; aperture 5 long and 2 | wide. Hab. " From a stream in the interior of Santa Anna" (Guppy). This is a small species, somewhat like M. boninensis of Lea in form, but differently sculptured. |