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Show 300 MR. E. A. SMITH O N T H E [Apr. 1, PEDIPES AFER (Gmelin). Hab. Portugal, Azores, Madeira, Salvages, and some parts of the shore of West Africa. This well-known species has not been previously recorded from St. Helena. None of the specimens obtained by Capt. Turton were living, but were found in the hard kind of conglomerate of shells and sand mentioned in the introductory observations. GADINIA COSTATA (Krauss). Mouretia costata, Krauss, Siidafr. Moll. p. 57, pi. 4. fig. I. Gadinia costata, Dall, Amer. Journ. Conch, vol. vi. p. 11. Hab. Cape of Good Hope. The St. Helena specimens have more colour than most of the South African shells I have seen. In other respects they are similar. The following HETEROPODA were obtained by dredging :- OXYGYRUS KERAUDRENII, Lesueur. A T L A N T A PERONII, Lesueur. ATLANTA INCLINATA, Eydoux & Souleyet. The synonymy and distribution of these specie., are given in my Report on the ' Challenger ' Heteropoda. IV. SCAPHOPODA. CADULUS JEFFREYSII, Monterosato. The synonymy and distribution of this species are given by Jeffreys (Proc. Zool. Soc. 1882, p. 665). I have carefully compared the series of specimens from St. Helena with others obtained by the ' Porcupine ' Expedition in the Atlantic, and can find no difference, except in size. Those from St. Helena are a trifle smaller. V. PELECYPODA. VENUS (VENTRICOLA) EFFOSSA, Bivona. Venus effossa, Bivona, Pfeiffer, Conch.-Cab. p. 197, pi. 32. figs. 1-4. Hab. Sicily, Naples, Corsica, Algeria, Canary Islands, Azores. The largest of the specimens from St. Helena is twenty-five millimetres long and high, and twenty-three in diameter. None of them have the lunule quite as deep as the Mediterranean shells figured by Pfeiffer and Philippi (Moll. Sicil. vol. i. pi. iii. fig. 20). V. toreuma, Gould, is very closely related to this species, but may be distinguished by its finer concentric ribs, which are more or less granular. V. effossa is radiately striated, especially at the anterior and posterior ends. The colour of the specimens at hand is similar to the above-cited figure in the • Conchyiien-Cabinet.' |