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Show 1881.] 'LIGHTNING'AND 'PORCUPINE'EXPEDITIONS. 715 Distribution. Mediterranean from Marseilles to Sicily; 50-190 fms. Fossil. Upper Tertiaries : Sicily. Post-tertiary: Calabria. 5. VENUS MULTILAMELLA, Lamarck. Cytherea multilamella, Lam. An. s. Vert. v. p. 581. Venus nux, Hidalgo, Moll. mar. Esp. Port, y las BaL, lam. 22. f. 5, 23. f. 1. 'Porcupine' Exp. 1870: Atl. St. Setubal B., C. Sagres (abundant) ; Med. Capo de Gata, 50, 50 a, Benzert Road, Rasel Amoush, Adventure Bank. Distribution. Mediterranean from Algiers to Sicily; 54-120 fms. Fossil. Miocene: Vienna Basin, Hungary, Switzerland. Upper Tertiaries : Belgium, S. France, Italy, Algeria, Cos, Rhodes, Cyprus, Madeira. Syn. V. rugosa, Brocchi and Bronn (not Linne), V. multilamel-losa, Nyst, V. Boryi, Deshayes, V. lamellosa, Rayneval, V. cygnus, Weinkauff (not Lamarck). Gmelin cites for his V. nux Bonanni's figure of V. verrucosa. 6. VENUS CASINA, Linne. Venus casina, L. S. N. p. 1130: B. C. ii. p. 337; v. p. 184, pi. xxxviii. f. 5. ' Lightning' Exp.: St. 4. 'Porcupine' Exp. 1869 : St. TheMinch. 1870 : Atl. 3 a, Setubal B., C. Sagres, 26, Tangier B.; Med. Capo de Gata. DistriBution. Vardo to Mediterranean and Adriatic, Madeira, Canaries; 0-145 fms. Fossil. Upper Tertiaries: Great Britain, S. France, Italy, Archipelago. Post-tertiary: Norway, England, Calabria; 0-1360 ft. 7. VENUS FASCIATA, Da Costa. Pectunculus fasciatus, Da C. Brit. Conch, p. 188, t. xiii. f. 3. Venus fasciata, B. C. ii. p. 334, pi. vi. f. 5 ; v. p. 184, pi. xxxviii. f. 4. 'Lightning' Exp. St. 5. 'Porcupine' Exp. 1869: St. The Minch. 1870: Atl. Vigo B., Setubal B., 22, 26, C. Sagres, 36; Med. 50, Adventure Bank. DistriBution. Havosund near N. Cape to G. Egina, Bosphorus, Adriatic, N. Japan; 0-130 fms. Fossil. Upper Tertiaries : Great Britain, S. France, Italy, Rhodes. Post-tertiary: Norway, Calabria; 0-40 ft. One of the numerous varieties is V. Brongniarti, of Payraudeau, which m y friend Monterosato prefers considering a distinct species. If he were right, other varieties would be equally entitled to specific distinction, and the word variety might be expunged from the dictionary of Natural History. 46* |