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Show 1884.] 'LIGHTNING' AND 'PORCUPINE' EXPEDITIONS. 131 I. TURRITELLA TEREBRA, Linne. Turbo terebra, L. S. N. p. 1239. Turritella terebra, B. C. iv. p. 80, pi. ii. f. 1 ; v. p. 209, pi. lxx. f. 'Porcupine' Exp 1869: St. 1, 6, 9, 13, 14, 15, 18, 23a, 25,63. 1 he Minch, Little Minch, Loch Torridon, off Lerwick. 1870- Atl 12 Vigo B., 13, 16, Setubal B., 22, 25, 26, off C. Sagres, 30-34, f angler B. ; Med. 45, Capo de Gata, Cartagena B. (and var. gracilis), 5 £ ' 3 »enzert R o a d - R a s e l Amoush, G. Tunis, Adventure Bank, off Rinaldo's Chair, 58. Distribution. Abundant throughout the coasts of the European seas from Loffoden and the Faroe Isles southwards to the Mediterranean and Adriatic, as well as of Marocco, Algeria, and Tunis; 3-100 fms. Fossil. Pliocene : Biot, and Italy. Post-tertiary : Sweden, Great Britain and Ireland, S.W. France, Leghorn, Morea, Rhodes, and Cos; 0-1350 ft. Not T. terebra of Philippi from the Cassel ter-tianes, which is T. geinitzi of Speyer. The fry of the present species was referred by Costa to the extinct genus Murchisonia. Synonyms. Turbo tricarinatus of Broechi (not Turritella tricari-nata of King), Turritella communis and other so-called species of Risso, and perhaps also Turbo ungulinus of Linne. Extremely variable as to the number and proportionate size of the spiral ridges or striae. The apex is bulbous and somewhat intorted. 2. TURRITELLA INCRASSATA, James Sowerbv. T. incrassata, Sow. Min. Conch. Gt. Brit. (1812), vol. i. p. 111. t. 51. f.6. T. triplicata, Reeve, Icon. Conch. (Turritella), pi. ix. f. 43, a, b. 'Porcupine' Exp. 1870: Atl. St. 3a, Vigo B., 16, Tangier B., Gibraltar B.; Med. 50a, Benzert Road, Rasel Amoush, Adventure Bank (and var. bicincta), 58. Distribution. Western coasts of France and Spain, Mediterranean, Adriatic, and Canaries ; 6-150 fms. Heligoland (Leuckart)l Fossil. Miocene : Maine-et-Loire (Bardin). Pliocene : English and Belgian Crags (and var. bicincta), S.W. and S. France, Italy. Post-tertiary: "Glacial beds of Wexford, not rare" (Forbes)'?, Cornwall (S. V. Wood; specimens nearly as large as those of the recent variety turbona of Monterosato), Leghorn, Rhodes, and Cyprus. There are a few synonyms, besides Turbo triplicatus aud other species of Broechi. One recent specimen, which had been repaired in the middle of the spire, had only a single ridge or keel on the last two whorls. MESALIA SUTURALIS, Forbes. Turritella suturalis, Forb. Rep. JEg. Inv. (1843), p. 189. Mesalia brevialis, Reeve, Icon. Conch. (Mesalia), pi. i. f. 2a, not f. 2b. 'Porcupine' Exp. 1870: Atl. St. C. Sagres, Tangier B. ; Med. Algeciras B. 9* |
