. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 5. Larvae, forty-eight hours after fertilization. Abbreviations as in Fig. 3. A. Normal larva. Dorsal view. To the left of the stomach is the eye spot (e). B. Exogastrula. Dorsal view. A large part of the post-trochal region is covered with short cilia. the normal larva, although to a lesser extent. There is no internal gut, and a large cavity is present inside the larva. The chsetae-sacs project into the cavity. As in the normal larva of this age, only the apical cilia persist at the anterior end. The dorsal cilia have
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 5. Larvae, forty-eight hours after fertilization. Abbreviations as in Fig. 3. A. Normal larva. Dorsal view. To the left of the stomach is the eye spot (e). B. Exogastrula. Dorsal view. A large part of the post-trochal region is covered with short cilia. the normal larva, although to a lesser extent. There is no internal gut, and a large cavity is present inside the larva. The chsetae-sacs project into the cavity. As in the normal larva of this age, only the apical cilia persist at the anterior end. The dorsal cilia have elongated and increased in number. The chromatophores, limited to about the anterior half of the larva, are becoming greener in color. The cilia on the exterior of the post-trochal region are found in two regions. Of these only the ventral region has the cilia of the cesophageal type. Forty-eight-hour Larva.—Normal (Fig. 5A). This is a well-devel- oped trochophore. The post-trochal region has lengthened somewhat. The apical cilia are numerous and the number of dorsal cilia has also increased. There is a single posterior cilium. A second, posterior row. 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
