. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 362 Y. BENAYAHU AND Y. LOYA. FIGURE 7. Embryogenesis of the planula larva of Parerythropodium fulvum fulvum. Bar = 100 . a: an egg without follicular layer, b: first two divisions of the egg. c: young embryos, d: irregular embryos, e: 24 h blastula. f: 48-72 h blastula. g: gastrula, 4 days after fertilization, h: young planula, arrow points to mouth opening, i: mature planula. Planulae structure and behavior Seven days after fertilization the mucus with the mature planulae in it starts to detach from the surface of the colon
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 362 Y. BENAYAHU AND Y. LOYA. FIGURE 7. Embryogenesis of the planula larva of Parerythropodium fulvum fulvum. Bar = 100 . a: an egg without follicular layer, b: first two divisions of the egg. c: young embryos, d: irregular embryos, e: 24 h blastula. f: 48-72 h blastula. g: gastrula, 4 days after fertilization, h: young planula, arrow points to mouth opening, i: mature planula. Planulae structure and behavior Seven days after fertilization the mucus with the mature planulae in it starts to detach from the surface of the colonies and sink near the "mother colony" (Fig. 8d). The mucoid substance starts to degrade, and the larvae begin to move with their cilia. Figure 8e presents a fractured mature planula, where dense ciliary ec-. 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
