. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. V •nuiti^.-^ M~\ Fig. 409. Physalia. (From Steuer.) is a coast form occurring from the channel. tnfundibulum and Beroe cucumis have a occur in deeper water, for instance, in the J fjords ; Mertensia ovum is an arctic form wegian fjords. Pelagic larvae are encountered among I animals either holopelagic or mero- ' the fishes. Among the higher organised rule seems to be that the mature stages f eggs
. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. V •nuiti^.-^ M~\ Fig. 409. Physalia. (From Steuer.) is a coast form occurring from the channel. tnfundibulum and Beroe cucumis have a occur in deeper water, for instance, in the J fjords ; Mertensia ovum is an arctic form wegian fjords. Pelagic larvae are encountered among I animals either holopelagic or mero- ' the fishes. Among the higher organised rule seems to be that the mature stages f eggs and larvae are pelagic, whereas to Spitsbergen ; Bolina far wider distribution, and deep waters of Norwegian also found in deep Nor- f all the higher groups of Pelagic larvae. I pelagic, from the medusae to forms of the latter the general lead a bottom life while the among the medusae the mature stages are generally pelagic. Pelagic, swimming or floating, young stages are found in the echinoderms ^p) (starfishes, holothurians, etc.), annelida, bryozoa, and in various ' crustaceans from the sessile cirripeds to the lobsters and crabs ; snails and mussels also have pelagic young. In spring especially the coast-waters teem with the larvae of all these animals, the larval forms very often differ from the adult, and an enormous amount of work has been devoted by zoologists to the description of all these forms. Some of these larvae seek the bottom after a lapse of only a few days, but many species lead a long pelagic life and during this period go through metamorphoses, among the most. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Murray, John, Sir, 1841-1914; Hjort, Johan, 1869-. London Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1912
