. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 12 13 •£?••'::':':$:$*.'•?*'.••.'..Tr?.'.'.r-???;r?g!3 f^-^^i K$ Int. ms&tftt&mm / 13 FIG. 9. A sleeve of anterior body-wall segments 4—6 is grafted over intestine and nerve cord of post-clitellar segments 10-12. Result, head regeneration. worm was fixed. Sections show a new head with brain, commissures, a small amount of differentiated pharynx epithelium, and an oral opening. With the exception of the oral opening. Case 32 possesses all the regenerated head parts noted in Case 27. The question of the o


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10 12 13 •£?••'::':':$:$*.'•?*'.••.'..Tr?.'.'.r-???;r?g!3 f^-^^i K$ Int. ms&tftt&mm / 13 FIG. 9. A sleeve of anterior body-wall segments 4—6 is grafted over intestine and nerve cord of post-clitellar segments 10-12. Result, head regeneration. worm was fixed. Sections show a new head with brain, commissures, a small amount of differentiated pharynx epithelium, and an oral opening. With the exception of the oral opening. Case 32 possesses all the regenerated head parts noted in Case 27. The question of the origin of the pharynx epithelium will be discussed in another section of the paper. Case 74 is another which clearly demonstrates the ability of the posterior nerve cord and intestine to participate in head formation when combined with anterior body 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