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Show 434 MR. E. A. SMITH ON SHELLS FROM ADEN. [Juue 16, 261. MALLEUS (MALVUFUNDUS) REGULA, Forskal. Hab. Red Sea; Aden (Caramagna); Philippine Islands and South Australia. 262. CRENATULA PICTA (Gmelin). Hab. Red Sea. Two small specimens from Aden, as regards colour, seem to connect this species and C. mytiloides, Lamk. It is not at all improbable that C. viridis, Lamk., is merely another colour-variety. 263. MELEAGRINA MARGARITIFERA (Linn.). Hab. Red Sea, Persian Gulf, Indian Ocean, Philippines, N.W. Austialia. Aden (Caramagna). 264. MELEAGRINA FUCATA, Gould. Hab. Ceylon, Japan ; Gulf of Suez (Cooke). 265. VULSELLA VULSELLA (Linn.). Hab. Red Sea ; Aden (Caramagna). For remarks and synonymy, see A. H. Cooke (Ann. Mag. Nat. Hist. 1886, vol. xvii. p. 62). 266. PECTEN SENATORIUS, Gmelin. Hab. Moluccas, Philippines, Red Sea, &c. 267. PECTEN LIVIDUS, Lamarck. Hab. Red Sea, Mauritius ; Aden (Caramagna). 268. PECTEN LUCULENTUS, Reeve, var. Hab. North Australia. Two specimens from Aden agree exactly with the type as regards form, but differ in colour. Besides the golden yellow tint and the dark spotting between the ribs mentioned by Reeve, the valves in the shell figured are ornamented with a sort of irregular subreticu-lation of white lines. The specimens from Aden are white or washed with pale rose and conspicuously spotted with black in the furrows between the principal nine or ten ribs, the dots forming an equal number of uninterrupted colour-rays. These examples also exhibit the irregular opaque wdiite lines. The ribs are finely prickled and the surface is ornamented throughout, with a microscopic sculpture. 269. PECTEN PLICA, Linn. Hab. China, Ceylon, Red Sea; Aden (Caramagna). Two valves of a species of Spondylus (270), an Anomia (271), a Plicatula (272), and an Oyster (273) w°re also collected by Major Yerbury, but these I refrain from attempting to name, as they belong to genera requiring special study. |