. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. Figure 10. [left] Synnotum circinatum, SEM of colony branches. Figure 11. [right] Synnotum circinatum, close up of zooid and Discussion: Unlike those of the very similar Synnotum aegyptiacum, the branches of Synnotum circinatum respond to a touch of forceps or a strong current of water, by coiling and writhing from their free ends. The uncalcified joints between each zooid may provide the means for this movement, although it has not been observed in Florida colonies of Synnotum aegyptiacum which h
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. Figure 10. [left] Synnotum circinatum, SEM of colony branches. Figure 11. [right] Synnotum circinatum, close up of zooid and Discussion: Unlike those of the very similar Synnotum aegyptiacum, the branches of Synnotum circinatum respond to a touch of forceps or a strong current of water, by coiling and writhing from their free ends. The uncalcified joints between each zooid may provide the means for this movement, although it has not been observed in Florida colonies of Synnotum aegyptiacum which have a similar structure. Marcus (1941) studied colony development and reproduction in Synnotum agyptiacum. He found that zooids with functional polypides occur only near the growing tips of branches. Those. 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 Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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