. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figures 11-17. Full-sized contact autoradiographs of (parts oO whole-body sections (50 ^m thickness) of specimens of Astehas rubens. frozen at timed intervals after oral administration of ["'C(U)]-palmitic acid ( MBq = 10 nC\ per animal). Figure 11. Animal sacrificed after one and a half hours. The cardiac stomach (CS) and pyloric caeca (PC) are strongly labeled. Arrow indicates narrow band of radioactivity along the lining of a gonad. The central area of the coelomic activity is distinctly labeled (asterisk). Figur
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Figures 11-17. Full-sized contact autoradiographs of (parts oO whole-body sections (50 ^m thickness) of specimens of Astehas rubens. frozen at timed intervals after oral administration of ["'C(U)]-palmitic acid ( MBq = 10 nC\ per animal). Figure 11. Animal sacrificed after one and a half hours. The cardiac stomach (CS) and pyloric caeca (PC) are strongly labeled. Arrow indicates narrow band of radioactivity along the lining of a gonad. The central area of the coelomic activity is distinctly labeled (asterisk). Figure 12. Animal sacrificed after six hours. High levels of radioactivity are present in cardiac stomach (CS), rectal caecum (RC), and pyloric caeca. Small arrow indicates tiny band of radioactivity in interbrachial septum; big arrow points to strongly labeled axial organ. Figure 13. Same animal as in Figure 12, section taken more aborally. Note strong labeling of the roof of the pyloric stomach (PS), pyloric ducts (PD), and rectal caecum (asterisk). Small arrow indicates band of tracer in the interbrachial septum; big arrow indicates labeled gastric hemal tufts. Figure 14. Animal sacrificed after one day. High levels of tracer are present in pyloric caeca (PC), pyloric ducts (PD), and rectal caeca (RC). Arrowhead indicates moderately labeled gastric hemal tufts. Figure 15. Same animal as in Figure 14, section taken more orally to show labeling of axial organ (arrowhead) and folded cardiac stomach (CS). Gonads (G) are slightly labeled. PC; pyloric 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 Clar
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