. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 2. Uropod exopodites from Astacus leptodactylus examined with a stereoscopic microscope: a, lacunary circulatory system taking on appearence of structured canals in stage A; b, stage DO showing the matrix indicated by the black arrow and the first spine indicated by the white arrow; c, d and e, stages Dl' Dl" and D'" showing the invaginated setae that progressively extend from the shell edge to the first spine; and f, stage D2 showing opacity and darkness of the invaginated setae. All scale bars equal mm
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 2. Uropod exopodites from Astacus leptodactylus examined with a stereoscopic microscope: a, lacunary circulatory system taking on appearence of structured canals in stage A; b, stage DO showing the matrix indicated by the black arrow and the first spine indicated by the white arrow; c, d and e, stages Dl' Dl" and D'" showing the invaginated setae that progressively extend from the shell edge to the first spine; and f, stage D2 showing opacity and darkness of the invaginated setae. All scale bars equal mm. In stage D3, folds in the underlying integument can be noticed, as Aiken (1973) reported in the lobster. They must not be confused with the scalloped designs formed in the old cuticle. Moreover, there are fewer circulating 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
