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Show 560 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [June 17, Distribution. Finmark and Faroe I. to Sicily ; 5-180 fms. Fossil. Pliocene and Post-tertiary. Scandinavia, Red Crag at Woodbridge, Biot, Italy; 0-130 ft. . Among other synonyms is P. rimulosus of Philippi, who identified it with the present species in his letter to Scacchi m 1844. It is not the P. striatus of v. Minister, from the Tertianes of N. W. Germany. 14. PECTEN TESTAE, Bivona. P. testes (Bivona MS.), Philippi, Cat. Moll. Sic. i. p. 11, t. v. f. 17 : B. C. ii. p. 67 ; v. p. 167, pi. xxiii. f. 3. 'Porcupine' Exp. 1869 : St. 2, 6, 23a, 25. 1870: Atl. Vigo B., Tangier B. ; Med. off" Jijeli, Benzert Road. Distribution. Norway to the iEgean, and the Adriatic ; 10-130 fms. The depth from which the Mediterranean cable was recovered, with the specimen attached to it, depending on the information received by Prof. A. Milne-Edwards, is doubtful. Fossil. Pliocene. Biot, Monte Mario, and Sicily. 15. PECTEN SIMILIS, Laskey. P. similis, Lask. M e m . Wern. Soc. i. p. 387, t. viii. f. 8.: B. C. ii. p. 71; v. p. 168, pi. xxiii. f. 5. 'Porcupine' Exp. 1869: St. 1, 3, 6, 9, Galway B., 13, 14, 18, 25, 33, 35. 1870 : Atl. 1, 2, 3, 10, 12, Vigo B., 16, 17a, Setubal B., off C. Sagres, 27-30 ; Med. Cartagena B., Rasel Amoush (one valve, striated inside more distinctly than usual, and named by me Pleuronectia Icevis), Adventure Bank, off Rinaldo's Chair. Distribution. Finmark to the Gulf of Egina, Adriatic, Madeira, Jamaica, and Corean Sea ; 2-300 fins. Fossil. Pliocene and Post-tertiary. Coralline Crag, Glacial bed in Fifeshire, Belgium, Plaisantin, S. Italy, Rhodes. Not P. pygmeeus of v. Miinster, which is a species of Amussium. 16. PECTEN GROENLANDICUS, G. B. Sowerby. P. groenlandicus, G. B. Sowerby, Thes. Conch, part ii. p. 57, pi. xiii. f. 40 (1842). 'Porcupine' Exp. 1869 : St. 23a, 40, 47. 18/0 : Atl. 6, 8, 9. Young only, and in this state closely resembling P. similis; but the sculpture is very different. The latter species is marked by concentric stria; in both valves, while P. groenlandicus has in the upper valve numerous impressed lines, arranged lengthwise and irregularly, and the lower valve is microscopically reticulated. Distribution. Arctic Seas in tbe North Atlantic, from Smith Sound to Bergen and the Gulf of St. Lawrence, White Sea and coasts of Russian Lapland ; 51-1785 fms. Fossil. 82° 27' N. lat., Norway, Scotland, and Maine ; from 30-40 ft. in depth to 200 ft. in height. The shell is far from being "equivalve," as Sowerbv described it. P. vilreus of Gray, but not Chemnitz's species of that name. |