. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10. VI" -\o FIGURE 4. Musculature within right half of a pump segment: DP, distal parapodial; PP, proximal parapodial; OP, oblique parapodial; P, promotor; VL, ventral longitudinal; NS, neuropodial "sucker"; R, remotor; T, transverse. FIGURE 5. Musculature of a pump segment as seen in frontal section; PP, proximal parapodial; P, promotor; DP, distal parapodial. FIGURE 6. Musculature of the anterior wall of a pump segment; PPI, proximal para- podial insertions; AC, anterior circular; P, promoter; IO, intestinal


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 10. VI" -\o FIGURE 4. Musculature within right half of a pump segment: DP, distal parapodial; PP, proximal parapodial; OP, oblique parapodial; P, promotor; VL, ventral longitudinal; NS, neuropodial "sucker"; R, remotor; T, transverse. FIGURE 5. Musculature of a pump segment as seen in frontal section; PP, proximal parapodial; P, promotor; DP, distal parapodial. FIGURE 6. Musculature of the anterior wall of a pump segment; PPI, proximal para- podial insertions; AC, anterior circular; P, promoter; IO, intestinal opening; VL, ventral longitudinal; AR-I, AR-II, central and peripheral anterior radial. FIGURE 7. Musculature of the posterior wall of a pump segment; PC, posterior circular; R, remotor; IO, intestinal opening; VL, ventral longitudinal; PR, posterior radial. but significant, extent by the water-propelling segments (14-16). Full extension is achieved by slow, forward locomotion of the anterior part of the worm (segments 1-12), while the posterior part of the animal (segments 17 and beyond) remains stationary. Within the observation tubes, the preferred orientation was ventral. 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