Archive image from page 557 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 depthsofoceangen00murr Year: 1912 522 DEPTHS OF THE OCEAN Hydroids are little in evidence ; the vast thickets of these animals found on the plateaus are absent. Alcyonaria are chiefly represented by the genus Paraspongodes, with its cauliflower-like colonies, numbers of which also flourish in tsf;:?

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