. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 2IO H. P. KJERSCHOW-AGERSBORG. elsewhere ('18). The radial symmetry is, indeed, superimposed. Cole ('13) demonstrated with marked clearness, experimentally, what Cuenot and Delage and Herouard had demonstrated mor- phologically, viz., that ray III. is the anterior ray. Cole, from his experiments on Asterias forbesi, constructs a line of bilateral sym- metry with regard to his records; an approximately equal number of trials fall on each side (Fig. 8). A line drawn perpendicular. FIG. 7. Diagram of an adult individual of the


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 2IO H. P. KJERSCHOW-AGERSBORG. elsewhere ('18). The radial symmetry is, indeed, superimposed. Cole ('13) demonstrated with marked clearness, experimentally, what Cuenot and Delage and Herouard had demonstrated mor- phologically, viz., that ray III. is the anterior ray. Cole, from his experiments on Asterias forbesi, constructs a line of bilateral sym- metry with regard to his records; an approximately equal number of trials fall on each side (Fig. 8). A line drawn perpendicular. FIG. 7. Diagram of an adult individual of the twenty-rayed starfish to show the bilateral appearance in an individual actively moving about, and the relation of the madreporite ('"p,) to the physiological anterior end (rays I—V) ; and of the anus (a) to the rest of the dorsal disk. A, primary posterior ray. rx-rx^, the oldest and youngest right post-larval rays; , oldest and youngest left, post-larval rays. to the line of bilateral symmetry, intersecting mid-dorsally, brings out of the total number of 499 trials: 347 ahead of it, , on the side which bears the madreporic plate; 152 behind, or to the side. 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