. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. AMAROECIUM CONSTELLATUM. II 75 . Vi • ., • "I *. FIGURE 5. A. Transverse section corresponding to Figure 4 A. 225 X. B. Transverse sec- tion through brain of Stage III, hypophysis separated from brain vesicle. 650 X. C, D. Sec- lions through sensory vesicle and definitive ganglion of Stage IV; oblique, thus including both sensory organs. 650 X. E. Transverse section through Stage I; anterior region. 150 X. F. Transverse section through early Stage II; neural folds closed. 150 X. G. Longitudinal sec- tion through adhesiv
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. AMAROECIUM CONSTELLATUM. II 75 . Vi • ., • "I *. FIGURE 5. A. Transverse section corresponding to Figure 4 A. 225 X. B. Transverse sec- tion through brain of Stage III, hypophysis separated from brain vesicle. 650 X. C, D. Sec- lions through sensory vesicle and definitive ganglion of Stage IV; oblique, thus including both sensory organs. 650 X. E. Transverse section through Stage I; anterior region. 150 X. F. Transverse section through early Stage II; neural folds closed. 150 X. G. Longitudinal sec- tion through adhesive papilla of Stage III. 650 X. d. c., definitive endoderm ; dcf. <;., definitive ganglion; <//. c., gland cells; //y/1., hypophysis; inch., mesenchyme cells; 11. p., neural plate; stal., statolith. Some of the endodermal cells of the yolk mass lie along the right side of the chordal cells and when the tail is constricted from the trunk region these cells form the loose column of caudal endoderm. In Stage IV little of it remains (Fig. 4C, 65). In Stage I the notochordal cells begin to shift in position. They interdigitate into a row of disc-shaped cells occupying the central axis of the short tail. The cells. 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
