On Deep-sea Mollusca from the Bay of Biscay. 315 XXXVIII. — The Deep-sea Mollusca of the Bay of Biscay. By J. Gwyn Jeffreys, LL.D., F.R.S. During the French deep-sea exploration last July, in the Bay of Biscay, in which expedition I was privileged to take part, on the obliging invitation of the Minister of Public In-struction, I was intrusted with the Mollusca. Perhaps the accompanying catalogue raisonne may interest conchologists. A List of the Mollusca procured during the Cruise of the 1 Travailleur 1 in the Bay of Biscay, 1880. Brachiopoda. 1. Terebratula caput-serpentis, Linne. See as to this and other ' Porcupine ' Mollusca the l Proceedings of the Zoological Society of London ' for 1878 and 1879. 2. T. cranium, Milller. A fragment. 3. Platydia anomioi'des, Scacchi & Philippi. 4. Megerlia truncata, L. 5. Crania anomala, Mull. CONCHIFERA. 6. Anomia ephippium, L. 7. Spondylus Gussoni, 0. G. Costa. 8. Pecten pes-lutrse, L. P. septemradiatus, Mull. 9. P. grcenlandicus, G. B. Sowerby. 10. P. fragilis, Jeffreys. 11. P. obliquatus, J. (MS.). 12. P. vitreus, Chemnitz ; and variety abyssorum. 13. Amussium fenestratum, Forbes ; a monstrous variety. 14. A. lucidum, J. 15. Lima elliptica, J. 16. L. subauriculata, Montagu. 17. L. Jeffreysi, Fischer (MS.). 18. Mytilus luteus, J. (MS.). Allied to Modiola incur-vata, Philippi, = M. Martorelli, Hidalgo; but it differs in shape, sculpture, epidermis, and colour. 19. Modiolaria subclavata, Libassi. 20. M. cuneata, J. (MS.). 21. Dacrydium vitreum (Holboll), Moller. 22. Area pectunculo'ides, 8c, var. septentrionalis. 23. Leda mess'anensis, Seguenza. L. acuminata, J. (not Von Buch). 24. L. pustulosa, J. 25. L. striolata, Brugnone.
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