. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 7. FIG. 8. FIG. 7. Anterior view of animal. FIG. 8. Anterior end from below: A, anterior adductor muscle; F, foot in sec- tion; H, hepatic follicles; M, mouth; P, palp-appendages; R, pedal retractors. The margin of the mantle becomes thickened as it borders the anterior end of the shell and ends abruptly just before the shells meet dorsally. Just in front of where the shells meet above are two short unpaired tentacles or tubercles in the median line and then ten or more on the edge of the rounded anterior edge of the ma


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 7. FIG. 8. FIG. 7. Anterior view of animal. FIG. 8. Anterior end from below: A, anterior adductor muscle; F, foot in sec- tion; H, hepatic follicles; M, mouth; P, palp-appendages; R, pedal retractors. The margin of the mantle becomes thickened as it borders the anterior end of the shell and ends abruptly just before the shells meet dorsally. Just in front of where the shells meet above are two short unpaired tentacles or tubercles in the median line and then ten or more on the edge of the rounded anterior edge of the mantle on each side diminishing in size, however, toward the ventral region, where they cease (Fig. 7). Writers have described the whole free edge of the mantle as bearing these papillee and even shown them in figures. Looking at this region from below the abrupt termination of the thickened mantle margin and the papillae are shown (Fig. 8). A triangular mus- cular layer seems to connect the two thickened portions of the mantle dorsally. Also a narrow band of fibers runs from 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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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology