. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 2. Diagrams of the blood vessels supplying the nephridia in the several species of Arenicola, a, A. Clafaredii, b, A. cristtita, c, A. marina, ti, A. Grubii; d will also serve as a diagram of the blood vessels of A. ecaudata. The form of the nephridia and of the digestive organs in the latter species, would be somewhat differ- ent but the arrangement of the blood vessels is the same as in A. Grubii. The dorsal vessel is shown by a solid line, thus . Afferent vessels arising from the ventral vessel are shown in broken li
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 2. Diagrams of the blood vessels supplying the nephridia in the several species of Arenicola, a, A. Clafaredii, b, A. cristtita, c, A. marina, ti, A. Grubii; d will also serve as a diagram of the blood vessels of A. ecaudata. The form of the nephridia and of the digestive organs in the latter species, would be somewhat differ- ent but the arrangement of the blood vessels is the same as in A. Grubii. The dorsal vessel is shown by a solid line, thus . Afferent vessels arising from the ventral vessel are shown in broken lines, —.—.—. Efferent vessels connecting with the sub-intestinal blood vessel are shown in dotted lines, D. J-'., dorsal vessel. j\ nephridial longitudinal vessel. P. V., parietal blood vessel. of previous authors. Thus in all nephridia of A. Claparedii, in some of A. marina and occasionally in A. Grubii, the afferent branch of the ventral vessel enters the apex of the funnel before it branches. In A. cristata one finds frequently, particularly in the somites containing the second and third nephridia. that the affer-. 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
