Advances in Marine Biology, Vol. 10 by Frederick S. Russell, Maurice Yonge (Eds.)

By Frederick S. Russell, Maurice Yonge (Eds.)

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Extra resources for Advances in Marine Biology, Vol. 10

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12) gave a table showing the ranges for the species known from the Ross Sea. Caryophyllia antarctica Flabellurn impensum F . antarcticum Gardineria antarctica G. lilliei Balanophyllia chnous 46-600 m 46-2 260 m 53-591 m 46-603 m 95-360 m 355-457 m 2. Actiniaria This is a group upon which little recently published material is available. Contributions based upon expedition material have come from Clubb (1902, 1908), Roule (1911) and Pax (1922a, 1926). The major worker in the Antarctic, as elsewhere, has been Carlgren ANTAROTIC BENTHOS 43 (1903, 1914, 1927, 1928, 1930 and 1939).

C. Coelenterata 1. Scleractinian corals Antarctic and Subantarctic corals have usually been considered to belong to the group of " simple " or " deep sea " corals. The term " ahermatypic " (literally non-reef building) is much more accurate and has been used much more frequently over the last decade in contrast to " hermatypic " (the corals of the reef building type). Considering the few species involved, knowledge of the Antarctic Scleractinian corals has only slowly accumulated and as Squires (1969, p.

Some species seem to be breeding in any particular month. It also appears that most species of Calcarea breed throughout the year. Burton believed that the Antarctic sponges showed to a marked degree a free-living habit, extremely rare amongst adult sponges elsewhere. Most of the evidence seems circumstantial but the arguments seem strong that some of the species considered by Burton are not normally attached to a substrate. Koltun (1968) has shown the degree to which the free siliceous spicules of sponges occur in bottom sediments.

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