. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 410 JOHN H. CROWE Crowe, Newell and Thomson (1971a) reported that the cuticular folds (Fig- ure 4), which are flexion points in the cuticle, are ahout 1/20 the thickness of the rest of the cuticle. This observation suggests that these thin areas may be more highly permeable than the rest of the cuticle. When the animal contracts into 1000E 100 up O 10 30 80, Anesthetized. 95 80 70 60% RH .25-1 Hours 1-10 10-100 FIGURE 2. Permeability coefficients of tardigrades dried at various relative humidities. For explanation see
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 410 JOHN H. CROWE Crowe, Newell and Thomson (1971a) reported that the cuticular folds (Fig- ure 4), which are flexion points in the cuticle, are ahout 1/20 the thickness of the rest of the cuticle. This observation suggests that these thin areas may be more highly permeable than the rest of the cuticle. When the animal contracts into 1000E 100 up O 10 30 80, Anesthetized. 95 80 70 60% RH .25-1 Hours 1-10 10-100 FIGURE 2. Permeability coefficients of tardigrades dried at various relative humidities. For explanation see text. a tun (Fig. 4), the thin cuticle areas are drawn into the body wall and removed from contact with the air. If such areas were indeed more permeable than the rest of the cuticle, formation of the tun could then, in part, account for reduced evaporative water loss by tuns compared with animals which were not allowed to form 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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