. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OVULATION IX THE FOUR-TOED SA M A XDER. 317 In many eggs the cleavage pattern becomes irregular in the course of the third division, after the first two divisions have proceeded in the regular or symmetrical fashion illustrated in Fig. i. This irregularity may originate through retardation of division in one or more of the blastomeres, as illustrated in Fig. 6, a, in which only two micromeres are shown completely separated from the corresponding macromeres. Often, however, the irregu-. Please note that these images are e
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OVULATION IX THE FOUR-TOED SA M A XDER. 317 In many eggs the cleavage pattern becomes irregular in the course of the third division, after the first two divisions have proceeded in the regular or symmetrical fashion illustrated in Fig. i. This irregularity may originate through retardation of division in one or more of the blastomeres, as illustrated in Fig. 6, a, in which only two micromeres are shown completely separated from the corresponding macromeres. Often, however, the irregu-. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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