. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. .<• FIGURE 4A. A culture of A. —* T. torosus chimeric-crest in peritoneal fluid; figured 4 days after explanation. Well-differentiated A. melanophores and xanthophores are peripherally located in the outgrowth. Small spindle shaped T. torosus pro- pigment cells are easily recognized by their large yolk reserves. FIGURE 4B. The same culture shown in figure 4A seven days after isolation. T. torosus cells are partially pigmented. peritoneal fluid and kept at 18° C. for the duration of the experiment.


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. .<• FIGURE 4A. A culture of A. —* T. torosus chimeric-crest in peritoneal fluid; figured 4 days after explanation. Well-differentiated A. melanophores and xanthophores are peripherally located in the outgrowth. Small spindle shaped T. torosus pro- pigment cells are easily recognized by their large yolk reserves. FIGURE 4B. The same culture shown in figure 4A seven days after isolation. T. torosus cells are partially pigmented. peritoneal fluid and kept at 18° C. for the duration of the experiment. After three days, outgrowths consisting of both A. and T. torosus cells were well established. The A. cells were for the most part located peripher- ally, thereby indicating that they had probably migrated from the explant in advance of the T. torosus cells. Figure 4A shows a four day culture in which A. chromatophores are already well differentiated, whereas T. torosus cells are as yet unpigmented. In this photograph, small spindle shaped T. torosus cells appear dark, owing to the bi-refringence of numerous yolk platelets in the cytoplasm. A. pigment cells are readily distinguishable from them by their larger size and smaller yolk reserves. Figure 4B shows the same culture three days later. 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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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology