. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 182 W. L. TOWER. thin layer of exuvial fluid is found, especially in the anterior parts of the body between the hypodermis and cuticula, and the inner surface of the cuticula appears rough and corroded. This corro- sion of the inner side of the secondary cuticula continues until it is often almost entirely removed, as shown in Fig. FIG. 5. C. femorata. Section of the integument from same location as the sec- tion from which Fig. 4 was taken, showing decrease in thickness of the secondary cuticula and great extension of t
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 182 W. L. TOWER. thin layer of exuvial fluid is found, especially in the anterior parts of the body between the hypodermis and cuticula, and the inner surface of the cuticula appears rough and corroded. This corro- sion of the inner side of the secondary cuticula continues until it is often almost entirely removed, as shown in Fig. FIG. 5. C. femorata. Section of the integument from same location as the sec- tion from which Fig. 4 was taken, showing decrease in thickness of the secondary cuticula and great extension of the basal ends of the cells to form a rela- tively thick but open layer of hypodermis. This dissolving of the secondary cuticula is a most constant phenomenon in ecdysis and has been foundin all the insects that I have examined, but in varying degrees. The same disintegra- tion of this layer is shown in Fig. 6 of L. decimlineata. This origin of part of the exuvial fluid in L. decimlineata and of all of it in C. femorata has not, I believe, been heretofore suspected but we can at once see the great utility of this process and especially the advantage gained in having the cuticula thinned. 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
