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Show 390 DR. GWYN JEFFREYS ON THE MOLLUSCA OF [June 19, In 1869 succeeded the Expedition in the Surveying steam-ship e Porcupine;' and the third cruise in that year was devoted to the further examination of the "Faroe Channel." The Mollusca obtained during this cruise did not show so great a difference between the "warm " and "cold" areas as appeared to be the case in other departments of the Invertebrata. During the following ten years took place the further and more extended cruises of the 'Porcupine,' and the Expeditions in H.M.S. ' Valorous' and ' Challenger,' all of which originated in the first mentioned cruise of the ' Lightning.' In 1880, previous to the lamented death of Sir Wyville Thomson, the Government was induced on his application to grant the use of a hired ship, the ' Knight Errant,' for the reexamination of the Faroe Channel. The vessel was small and the weather bad; but some results were obtained, and communicated by M r . John Murray, the naturalist in charge, to the Royal Society of Edinburgh, who published the account in their ' Proceedings.' I contributed a list of the Mollusca. Staff-Commander Tizard conducted this cruise as well as that in H.M.S. * Triton '; he had been one of the officers in the ' Challenger' Expedition. Mr. Murray was one of the naturalists on board the ' Challenger,' and is well known for his admirable work on deep-sea deposits. In 1882 the Government ordered the 'Triton,' a composite steamship of 410 tons, which was employed in the Surveying service, to resurvey and explore the sea-bed lying between 59 and 61 degrees of North Latitude, and especially the " W y vine-Thomson ridge," which was supposed to separate the " w a r m " from the "cold" area. Mr. Murray had also the scientific charge of this short cruise. It was made in August. The weather was, on this occasion also, bad ; but the results as regards the Mollusca were most interesting, and include the discovery of several undescribed species. The following is a list of the Stations with other particulars :- No. of Station. 1. ... 2. ... 3. ... 4.1... 5.2... 6. ... 7. ... 8. ... 9. ... 10. ... 11. ... 12. ... 13. ... Lat. '. 59 59 60 60 60 60 60 60 60 59 59 60 59 51 37 39 22 11 9 19 18 5 40 39 31 51 Ef. ff 30 30 30 40 45 30 2 Long. 0 ' 6 6 9 8 8 7 7 6 6 7 7 7 8 21 21 6 21 15 16 10 15 21 21 13 34 18 w Depth * in faths. 240 530 87 327-430 433 30 466 585 640 608 516 555 580 570 Bottom Temperature. o o 47-5-47-6 .. 46-2 495 315-320 ... 43-5 29*5-30*0 .. 299-30-5 .. 300 300 46-0-46-5 .. 45-5 31-0 45-7 Remarks. . O n the ridge. West of ridge. , Faroe Banks. . East of ridge. . West of ridge. . East of ridge. . East of ridge. . East of ridge. . East of ridge. . West of ridge. , West of ridge. . East of ridge. . West of ridge. W a r m or cold area. Warm. Cold. Warm. Cold. Cold. Cold. Cold. Warm. Warm. Cold. Warm. 1 Partly on the ridge. 2 The trawl had been carried right over the ridge and came up in the Cold area. |
