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Show 706 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [June 7> Family XI. CARDIID^E. 1. C A R D I U M CILIARE, Linne. Cardium ciliare, L. S. N. p. 1122. Cardium paucicostatum, G. B. Sowerby, Conch. 111. f. 20. 'Porcupine' Exp. 1870: Med. St. G. Bona (young), Benzert Road, Adventure Bank (valves and young). DistriBution. "La Manche" (De Gerville)1, N. Spain, Vigo Bay and Lisbon (McAndrew), S.W. France {Fischer), Mediterranean, Adriatic ; 2-45 fms. Fossil. Pliocene: S. France, Italy. Post-tertiary : Calabria. Differs from the young of C. aculeatum in being thinner, more globose and oblique, having fewer ribs and stronger sculpture. It assuredly is not the young of C. echinatum. Reeve, in his ' Concho-logia Iconica' has figured the present species as G. ciliare and 0. paucicostatum. 2. CARDIUM ACULEATUM, Linne. Cardium aculeatum, L. S. N. p. 1122 : B. C. ii. p. 268 ; v. p. 180, pi. xxxiv. f. 1, la. 'Porcupine' Exp. 1870 : Atl. St. 17 (fragment), Vigo B. (young); Med., 50 (young). DistriBution. British coasts, Bergen {31. Sars), Holland, France, Coruiia, Mogador, Mediterranean, Adriatic; 4-20 fms. It is a southern form. Fossil. Upper Tertiaries and Post-tertiary: Scotland ?, Lancashire?, S. France, Italy, Morea. As to the Bergen locality, it appears that there has always been a considerable trade in stock-fish between that and Mediterranean ports; and therefore the occurrence at Bergen of a single dead specimen of G. aculeatum must not be considered positive proof of its inhabiting the Norwegian seas. Mr. Norman also doubts the locality, because Lepralia violacea, a southern Polyzoon, is attached to the Bergen specimen of Cardium. 3. CARDIUM ECHINATUM, Linne. Cardium echinatum, L. S. N. p. 1122 : B. C. ii. p. 270; v. p. 181, pi. xxxiv. f. 2. 'Porcupine' Exp. 1869: St. 6 (young), 9, 10, 18, 24,33,35, 61. 1870: Atl. 10, Vigo B., C. Sagres (var. deshayesii), Tangier B. (var. rarispina). DistriBution. Iceland, Faroe I., and Finmark southwards to the Sea of Marmora, Adriatic, Morocco, Madeira, Canaries; 0-100 fms. Fossil. Upper Tertiaries: Austria, S. France, Italy, Algeria, Morea, Rhodes. Post-tertiary: Iceland, Scandinavia, British Isles; Mr. Duprey tells me that this and many other bivalves which live between tide-marks, go out of the sand directly the tide be°*ins to flow, especially when the weather is fine ; a heavy shower stops their appearance. " " |