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Show 1881.] 'LIGHTNING' AND 'PORCUPINE' EXPEDITIONS. 721 DistriBution. Mediterranean and Adriatic ; 10-20 fms. Fossil. Upper Tertiaries and Post-tertiary : S. France, Italy. T. rostrata of Born and Poli, but not of Linne. 11. TELLINA DISTORTA, Poli. T. distorta, Poli, Test. utr. Sic. i. p. 39, t. xv. f. 11. 'Porcupine' Exp. 1870 : Med. St. 55, G. Bona, Benzert Road, G. Tunis, Adventure Bank. DistriBution. Throughout the Mediterranean, Madeira and Canaries ; 5-60 fms. Fossil. Post-tertiary : Calabria. I still believe this to be a variety of T. donacina ; but in deference to other conchologists, I will retain it as a provisional species. The difference seems to consist in the smaller size and greater angularity of the posterior side. It may be as distinct as T. pusilla. 12. TELLINA DONACINA, Linne. T. donacina, L. S. N. p. 1118: B.C. ii. p. 386; v. p. 187, pi. xii. f. 4. 'Porcupine' Exp. 1870: Atl. St. Vigo B., C. Sagres, Tangier B. Distribution. Scotland to the Archipelago and Sea of Marmora, Black Sea, Adriatic, Madeira ; 0-82 fms. Fossil. Miocene : Austrian Empire, Switzerland, S.W. France. Upper Tertiaries and Post-tertiary: Coralline Crag and Scotland, Belgium, S. France, Italy, Algiers, Greece, Rhodes, Madeira. 13. TELLINA PUSILLA, Philippi. T. pusilla, Phil, Moll. Sic. i. p. 29, t. iii. f. 9 a, b : B. C. ii. p. 388; v. p. 187, pi. xii. f. 5. ' Lightning ' Exp. : St. 5. 'Porcupine' Exp. 1869: St. 13, The Minch, 52. 1870: Atl. Vigo B., C. Sagres, 30 ; Med. Algesiras B., 40, Adventure Bank. Distribution. W . Finmark and Faroe I. to Mediterranean and Adriatic; 3-205 fms. Fossil. Miocene: N.W. Germany {Philippi). Upper Tertiaries and Post-tertiary : Italy, Rhodes. T. pygmaa (as of Philippi), Loven. 14. TELLINA TENELLA1, Jeffreys. (Plate LXL fig 11.) S H E L L trapezoid-shaped or irregularly oblong, much compressed, rather thin, semitransparent, and glossy : sculpture, irregular concentric impressed striae, which become ridge-like towards _ the posterior side; the umbonal area is covered with close-set delicate strise : colour pinkish, with longitudinal and broken rays of a deeper tint; there is no streak below the beak as in T. donacina ; the whole surface is crossed lengthwise with very numerous fine whitish radiating lines, which are only observable with a lens and appear to permeate the structure of the shell: epidermis fibrous, yellowish brown, 1 Somewhat delicate. |