Pleistocene Shells from the Raised Beach Deposits of the Red
544 R. Sullen Newton—Shells from Raised Beaches, Red Sea* Pliocene periods. It may have been shifted and incorporated in glacial drift, and afterwards dislodged and transported by river-ice, and thus transferred to the wide-spreading gravels of the Thames- Valley. It is, however, impossible to speak precisely of its past history. The fact of its occurrence is interesting, as Mr. Whitaker has remarked that such blocks " occur somewhat rarely in our Biver Gravel." An example fully three feet across was, however, noticed by Mr. J. Allen Brown at Alperton, in the Brent "Valley, and other records have been published.1 The specimen to which attention is now directed was observed by Colonel C. K. Bushe, F.G.S., and he lost no time in securing it and in presenting it to the British Museum of Natural History, Cromwell Boad, where it will be preserved and placed in the Garden on the eastern side near the Fossil Tree from Craigleith, Edinburgh, and not very far from the spot where it was discovered in the Gravel. V.—PLEISTOCENE SHELLS FKOM THE EAISED BEACH DEPOSITS OF~ THE KED SEA. By R. BULLEX NEWTOX, F.G.S., of the British Museum (Natural History). {Concluded from the Kotember Number, p. 514.) (PLATES XX-XXII.) Family CONID^E. Conns flavidus, Lamarck. Conusjlatidus, Lamarck : Hist. Nat. Anim. sans Vert., vol. vii (1822), p. 468. DISTRIBUTION.-—Eed Sea, East Africa, Ceylon, Java, etc. (Tryon);. Bed Sea, Persian Gulf, East Africa, Polynesia, Fiji Islands, etc. (E. A. Smith). Coll. Geol. Surv. Egypt: raised beach 80 feet above sea, Camp 6, north of Wadi Gueh, west of Kosseir (Nos.
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