. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 282 INEZ WHIPPLE WILDER. granules, although among these cells there have already appeared well-developed mucous cells which are filled with their secretion and are already discharging it into the lumen. The duodenum leads rather abruptly into the right anterior region of the cylin- drical yolk mass, beneath the posterior margin of the liver. In this mass of yolk cells two types of cell may be distinguished, a smaller and a larger (ys and yl, Fig. n). The smaller ones lie peripherally, have a spherical or slightly columnar fo
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 282 INEZ WHIPPLE WILDER. granules, although among these cells there have already appeared well-developed mucous cells which are filled with their secretion and are already discharging it into the lumen. The duodenum leads rather abruptly into the right anterior region of the cylin- drical yolk mass, beneath the posterior margin of the liver. In this mass of yolk cells two types of cell may be distinguished, a smaller and a larger (ys and yl, Fig. n). The smaller ones lie peripherally, have a spherical or slightly columnar form with a well-defined nucleus usually in the peripheral end of the 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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