. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 34 Y. BENAYAHU AND Y. LOYA. FIGURE 1. Colonies of Xenia macrospiculata. a: Aggregation of colonies at the coral reef of Muqebla'. b: Colonies with retracted polyps, c: Colony with extended polyps (X4). Abbreviations: A—anthocodium, C—capitulum, S—stalk. X. macrospiculata colonies are dioecious. Hermaphroditic colonies are very rare; among more than 2000 colonies examined, only three bore both sperm sacs and oocytes. The gonads are arranged along the four lateral and two sulcal mesenteries (Fig. 2b), except for the anthocodia
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 34 Y. BENAYAHU AND Y. LOYA. FIGURE 1. Colonies of Xenia macrospiculata. a: Aggregation of colonies at the coral reef of Muqebla'. b: Colonies with retracted polyps, c: Colony with extended polyps (X4). Abbreviations: A—anthocodium, C—capitulum, S—stalk. X. macrospiculata colonies are dioecious. Hermaphroditic colonies are very rare; among more than 2000 colonies examined, only three bore both sperm sacs and oocytes. The gonads are arranged along the four lateral and two sulcal mesenteries (Fig. 2b), except for the anthocodial part of the polyps. Every year the initial gonadal primordia (IGP) start to develop at the upper part of the polyp cavity, below the anthocodium, on a small triangular projection of the septum. As maturation proceeds, more gonads develop along the edges of the mesenteries, gradually covering the surface of the mesenteries. Toward the end of gonadal development, they frequently fill most of the polyp cavities (Fig. 2c, d). The development of the IGP starts simultaneously. 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
