. Text book of zoology. Zoology. Glass 1. Gymnomyxa. Order 1. Rhizopoda, 87 division (c/. the Gregarines)^ just as in the Metazoa, fertilisation is succeeded by active cell division. For the conjugation of the Infusoria, see that group. . . With pseudopodia. Infusoria. Body covered with cilia ) ^â. , -â â ^ â -xTiT-A X -T r Without pseudopodia. Gregarina. Without cilia . > r r Class 1. Gymnomyxa. {Sarcodina.) The numerous forms belonging to this class are all possessed of the power of protruding pseudopodia, by means of which they move about, and ingest their food. Most of them
. Text book of zoology. Zoology. Glass 1. Gymnomyxa. Order 1. Rhizopoda, 87 division (c/. the Gregarines)^ just as in the Metazoa, fertilisation is succeeded by active cell division. For the conjugation of the Infusoria, see that group. . . With pseudopodia. Infusoria. Body covered with cilia ) ^â. , -â â ^ â -xTiT-A X -T r Without pseudopodia. Gregarina. Without cilia . > r r Class 1. Gymnomyxa. {Sarcodina.) The numerous forms belonging to this class are all possessed of the power of protruding pseudopodia, by means of which they move about, and ingest their food. Most of them are provided with a skeleton, harder portions within or around the protoplasm, varying in form and in chemical composition. They are for the most part marine. Order 1. Rhizopoda. In some Rhizopoda, for instance, in the Amoeba, which has already been mentioned, there is no skeleton. Most of them, however, are furnished with a protective structure in the form of a shell, which surrounds the greater part of the body. In the simplest cases the shell is cap-shaped, with a single large opening through which the protoplasm projects. In others it is complicated by being. /â AX-;v v^ Pig. 47. A {Difflugiaj and B {Euglypha), two imperforate fresh-water Ehizopods, with ohitinoua shells ; in A small foreign bodies are fastened to the shell, n niicleijs, p pseudo- podia. C Marine Ehizopod [Rotalia).âA after Stein, B after Hertwig and Leaser, C after M. 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 Boas, J. E. V. (Johan Erik Vesti), 1855-1935; Boas, J. E. V. (Johan Erik Vesti), 1855-1935. Lehrbuch der Zoologie. London, Sampson Low, Marston
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1896
