. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 102 RICHARD D. CAMPBELL Time. Stolons Stolons anastomosing parallel Dactylozooid Gonozooid Gastrozooid Top view Side view FIGURE 4. Deduced colony progression and development pattern (see text). network of stolons covering the proximal portion of the worm tube. Individual gastrozooids represent at least relatively permanent components of the active front; they may or may not undergo a gradual replacement cycle. Gonozooids go through a more rapid replacement cycle ; individuals occasionally stop advancing with the gastrozooid
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 102 RICHARD D. CAMPBELL Time. Stolons Stolons anastomosing parallel Dactylozooid Gonozooid Gastrozooid Top view Side view FIGURE 4. Deduced colony progression and development pattern (see text). network of stolons covering the proximal portion of the worm tube. Individual gastrozooids represent at least relatively permanent components of the active front; they may or may not undergo a gradual replacement cycle. Gonozooids go through a more rapid replacement cycle ; individuals occasionally stop advancing with the gastrozooid, stop forming medusa buds, and diminish in size. Each one lost in this manner is replaced by a new one budded from the column of the parent gastro- zooid. The stolon system represents the trail of gastrozooids, slowly elaborated by anastomosing. DISCUSSION The unique Proboscidactyla colonial growth pattern results from the ability of the gastrozooids to move. Colonial succession in other hydroids which have been studied involves extension of the colony boundaries by stolon growth, followed by new polyps arising in the peripheral zones. Older colony regions may die and be. 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
