Archive image from page 365 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 'â '''. MmK 330 DEPTHS OF THE OCEAN Besides these highly-organised forms, which I have given as instances, the peridineae include many with a far more simple structure. There are, especially in the samples collected by means of the centrifuge, numerous series of small forms, both coloured and colour- less, and often with v
Archive image from page 365 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 'â '''. MmK 330 DEPTHS OF THE OCEAN Besides these highly-organised forms, which I have given as instances, the peridineae include many with a far more simple structure. There are, especially in the samples collected by means of the centrifuge, numerous series of small forms, both coloured and colour- less, and often with very poorly de- veloped cell-walls. These, too, have already got or will shortly be given names, although many of them are prob- ably nothing more than development- stages of the larger forms. We can recognise the whole series by their char- acteristic ring-furrow, so that we are seldom left in doubt as to the classifica- tion of even the simplest types. Still a good deal remains to be done before we With brown flagellate cells in the cau claim a thorough acquaintance with 40 ''jr' f'''''''''' their development-history and systematic ' ' ' ' ' arrangement. The third series of pelagic algae consists of brown flagellates, the chief place amongst which is occupied by calcareous flagellates or coccolithophoridse (see Fig. 239). Their cells are Fig. 235 Ornithocercus magnif/ccs. >:/:
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