. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. sp FIGURE 3. Male gonophores. A, B, young stage showing formation of entocodon and germ mass. C, later stage with arrows indicating expansion-contraction amplitude of spadix. D, late stage with germ cells present as spermatids, and broken lines indicating stalk diameter when dilated. E, ripe gonophore with active spermatozoa and expanding and contracting distal end. F, emission of spermatozoa, e, entocodon; sp, spadix. contracts in a regular manner, with an amplitude indicated by the arrows in Figure 3C. In the later stages
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. sp FIGURE 3. Male gonophores. A, B, young stage showing formation of entocodon and germ mass. C, later stage with arrows indicating expansion-contraction amplitude of spadix. D, late stage with germ cells present as spermatids, and broken lines indicating stalk diameter when dilated. E, ripe gonophore with active spermatozoa and expanding and contracting distal end. F, emission of spermatozoa, e, entocodon; sp, spadix. contracts in a regular manner, with an amplitude indicated by the arrows in Figure 3C. In the later stages (Fig. 3D) the dilatation and contraction is more obvious in the short stalk of the gonophore, the growing mass of male germ cells possibly inhibiting or at least reducing the freedom of movement of the spadix wall 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
Size: 931px × 2683px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
