. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 5. appendages, or pleopods, are blunt papillae and apparently the same in both sexes, though sometimes in the male they seem more pointed and possibly longer. The annulus is thus a narrow transverse part of the sternum and since its posterior edge projects and overhangs somewhat it might be regarded as a sort of transverse fold. Its surface is en- tirely flat and simple as compared with the complex adult surface, Fig. i, except for the slight median depression. Looking at the shell only, Fig. 6 enlarged two hundred diam
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 5. appendages, or pleopods, are blunt papillae and apparently the same in both sexes, though sometimes in the male they seem more pointed and possibly longer. The annulus is thus a narrow transverse part of the sternum and since its posterior edge projects and overhangs somewhat it might be regarded as a sort of transverse fold. Its surface is en- tirely flat and simple as compared with the complex adult surface, Fig. i, except for the slight median depression. Looking at the shell only, Fig. 6 enlarged two hundred diameters, this depres- sion is a wide shallow groove indicated by converging wrinkles in the cuticle on each side the middle line of the animal and ex-. FIG. 6. FIG. 7. tending forward but a slight distance from the posterior edge of the annulus. The posterior edge of the annulus is rounded and protuberant and the groove to some extent extends over this pos- terior face of the annulus and cannot well be all seen at once from a ventral point of view. While this groove in the shell differs in different specimens it is in no way an artificial result of methods. 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
