Archive image from page 504 of The depths of the ocean;. 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 depthsofoceange00murr Year: 1912 VIII INVERTEBRATE BOTTOM FAUNA 467 Norway there are three common species : Laminaria hyperborea, L. digit at a, and L. saccharina. The first of these occurs in great thickets in open bays or places where the play of the waves is felt, whereas the other two grow in more sheltered localities. The fauna varies accordingly. On
Archive image from page 504 of The depths of the ocean;. 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 depthsofoceange00murr Year: 1912 VIII INVERTEBRATE BOTTOM FAUNA 467 Norway there are three common species : Laminaria hyperborea, L. digit at a, and L. saccharina. The first of these occurs in great thickets in open bays or places where the play of the waves is felt, whereas the other two grow in more sheltered localities. The fauna varies accordingly. On the stalks of Laminaria hyperborea we get numbers of attached forms, chiefly hydroids, bryozoans, synascidians (see Fig. 327), and calcareous sponges. Halickondria panicea, one of the few siliceous sponges of the littoral zone, also Fig. 327. Synascidian : Polycyclus fuscus, Huitfeldt Kaas.
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