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Show 1879.] 'LIGHTNING'AND * PORCUPINE* EXPEDITIONS. 555 synonym. The opinion that this mollusk is of a poisonous nature when eaten (B. C. ii. p. 32) has been confirmed by Dr. Hidalgo, who says that at Mahon it is called " ostia borda deveri" for that reason. 2. ANOMIA PATELLIFORMIS, Linne. Anomia patelliformis, L. S. N. p. 1151 : B. C. ii. p. 34 ; v. p. 165, pi. xx. f. 2. 'Lightning' Exp. : off the Faroe I. 'Porcupine' Exp. 1869: St. 2, 9, Galway B., 23a, The Minch. A specimen is marked like Amussium hoshynsi in an imbricated fashion. 1870 : Atl. 29, Tangier B.; Med., Cartagena B. Distribution. Faroe I. to Mediterranean and Adriatic, N. W. America; 0-420 fms. Fossil. Pliocene and Post-tertiary. Scandinavia, Great Britain and Ireland, Belgium, Vienna Basin, and Italy ; 4-130 ft. Seventeen synonyms, including Ostreum striatum of Da Costa, and A. striata of Brocchi and Loven. Family II. OSTREIDYE. 1. OSTREA EDULIS, Linne. Ostrea edulis, L. S. N. p. 1148 : B. C. ii. p. 38, pi. i. f. 5 ; v. p. 165, pi. xxi. f. 1. 'Porcupine' Exp. 1869 : St. 6, 9, Galway B. Valves of young shells, one being deeply concave, and resembling O. cochlear. 1870 : Atl. Cadiz; Var. parasitica, Med., Capo de Gata and Cartagena B. Distribution. Iceland to Mogador, Mediterranean and Adriatic, Sea of Azof, Nova Scotia and Newfoundland ; 0-45 fms. Fossil. Pliocene and Post-tertiary. Scandinavia, Great Britain and Ireland, Holland, Belgium, Germany, Vienna Basin, S. France, Italy, Algeria, Turkey in Europe ; 0-1360 ft. The synonyms are numerous, owing to the extreme variability of the shell. 2. OSTREA COCHLEAR, Poli. O. cochlear, Poli, Test. utr. Sic. ii. p. 179, t. xxviii. f. 28. < Porcupine' Exp. 1869 : St. 1, 35. 1870 : Atl. 10, 13, Setubal B., off Cape Sagres, 26, 36; Med. Cartagena B., 50, 50a, off Jijeli, 55, G. Bona, Benzert Road, Rasel Amoush, G. Tunis, and Adventure Bank. Some small and young specimens are intermediate between this species and O. edulis ; and I am by no means satisfied that the two are distinct. O. cochlear inhabits deeper and more still waters than O. edulis ; and it is attached to corals, shells, and other organisms, being often clustered together. Distribution. Atlantic coasts of France and Lusitania, the Mediterranean, Adriatic, iEgean, and Canaries ; 40-205 fms. The depth at which it was affixed to the Cagliari-Bona submarine cable, and noticed by Professor Alphonse Milne-Edwards, is doubtful. Fossil. Pliocene. Coralline Crag (as O. spectrum), Belgium, Vienna Basin, Biot, Italy, Algeria, and Morea. |