. The Cambridge natural history. Zoology. SPOROZOA lOI merozoites, and round off in the gut. The miorogametocyte, or spermatogone, has the same character, but is smaller; it applies itself like a cap to one pole of the oogamete, which has rounded off; it then divides into four sperms, whose cytoplasm. Fl6. 34.—Life-history of Ooccidium schuiergi. a, Penetration of epithelium-cell of host by sporozoite ; b-d, stages of multiple cell-formation in naked state (schizogony); e,/, formation of oogamete ; g, conjugation ; h-j, formation of sperms (s) ; k, development of zygote (fertilised ovum) to fo
. The Cambridge natural history. Zoology. SPOROZOA lOI merozoites, and round off in the gut. The miorogametocyte, or spermatogone, has the same character, but is smaller; it applies itself like a cap to one pole of the oogamete, which has rounded off; it then divides into four sperms, whose cytoplasm. Fl6. 34.—Life-history of Ooccidium schuiergi. a, Penetration of epithelium-cell of host by sporozoite ; b-d, stages of multiple cell-formation in naked state (schizogony); e,/, formation of oogamete ; g, conjugation ; h-j, formation of sperms (s) ; k, development of zygote (fertilised ovum) to form four spores ; I, formation of two zoospores (or sickle germs) in each spore. (From Calkins's Protozoa, after Schaudinu.) is not sharply separated; one of these then separates from the' common mass, enters the oogamete, and so conjugation is effected, with an oosperm as its result. This latter mode of conjugation is that of Adelea ovata and Coccidium lacazei: the former is probably the more primitive and the commoner. The sperms. 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 Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. ed. [London, Macmillan and Co. , Limited; New York, The Macmillan Company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
