. The Australian zoologist. Zoology; Zoology; Zoology. 47 THE MIGRATION OF THE JOLLY-TAIL OR EEL-GUDGEON, GALAXIAS ATTENUATUS, FROM THE SEA TO FRESH-WATER. By ALLAN R. McCULLOCH. Zoologist, Australian Museum. The occurrence of various species of the genus Galaxias in the fresh waters of the several continents ami larger islands adjoining the Antarctic oceans has attracted considerable attention. In spite of the lact that several species have been known to breed, or at least to occur, in the sea. it has been argued that Mich a distribution affords evidence in support of the " Antarctic Con


. The Australian zoologist. Zoology; Zoology; Zoology. 47 THE MIGRATION OF THE JOLLY-TAIL OR EEL-GUDGEON, GALAXIAS ATTENUATUS, FROM THE SEA TO FRESH-WATER. By ALLAN R. McCULLOCH. Zoologist, Australian Museum. The occurrence of various species of the genus Galaxias in the fresh waters of the several continents ami larger islands adjoining the Antarctic oceans has attracted considerable attention. In spite of the lact that several species have been known to breed, or at least to occur, in the sea. it has been argued that Mich a distribution affords evidence in support of the " Antarctic Continent" theory. Regan, however, has recently expressed the opinion '.- that this evidence is not trustworthy, and the following notes are submitted in support of his contention. On 31st August. 191.|. I obtained a dozen larval Galaxias attenuates from a small stream crossing the beach at Freshwater Bay. near Sydney, at a few yards above where it runs into the sea. The water they wire in was quite fresh, but concluding that they were migrating to or from the sea I immediately transferred them to a mixture of half fresh and hall salt water; as this treatment did not affect them they were placed in pure sea-water in abouf fifteen minutes' time. They remained alive and healthy in this for about two hours, though the subsequent handling they received caused the death ol all bu1 two specimens. Vboul three hours after their capture these two were again transferred to a freshwater aquarium, in which they have since lived, being now, four months later, alive and healthy. The stream from which they were obtained is a small one, being about six feet wide and only a few inches deep ; in dry seasons it sometimes becomes lost in the sand before reaching the sea, but at the time ol our \isit was running with a comparatively strong current across the sloping beach. Surl breaks along the whole length ol 1 In- beach, and at high tide 11m- »;ms wash some little distance up the stream. \ lew


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914