. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGXTRE 4. Sixteen cell stage, A. Animal pole, cells on right side designated, B. Posterior view. C. Left side, D. Right side. chorda-neural cells divide into two transverse rows of four neural cells and four chordal cells. The chordal cells lie towards the vegetative pole, the neural cells towards the animal pole and in contact with the ectodermal micromeres (Fig. 7). No attempt is made beyond this point to follow the lineage of the cells. Since they correspond through the first six cleavages with the cells of Ascidians who
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGXTRE 4. Sixteen cell stage, A. Animal pole, cells on right side designated, B. Posterior view. C. Left side, D. Right side. chorda-neural cells divide into two transverse rows of four neural cells and four chordal cells. The chordal cells lie towards the vegetative pole, the neural cells towards the animal pole and in contact with the ectodermal micromeres (Fig. 7). No attempt is made beyond this point to follow the lineage of the cells. Since they correspond through the first six cleavages with the cells of Ascidians whose cell lineage can be followed through gastrulation, it may be assumed that their agreement continues through subsequent stages with differences dependent on the mechanics of gastrulation in 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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