. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DEVELOPMENT OF A SCYPHOMEDUSA 287 On the other hand, the comparable stages of metamorphosis exhibited by the two heads of the individual shown in Figure 3B suggest the possibility that the division of the distal end preceded differentiation into scyphistomae, especially since the head that is somewhat the smaller is actually the more advanced, for only the eight interlobular tentacles remain. Such a condition seems more likely to arise B. FIGURE 3. Retention and division of buds of C. capillata. A, bud forming scyphistoma at
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DEVELOPMENT OF A SCYPHOMEDUSA 287 On the other hand, the comparable stages of metamorphosis exhibited by the two heads of the individual shown in Figure 3B suggest the possibility that the division of the distal end preceded differentiation into scyphistomae, especially since the head that is somewhat the smaller is actually the more advanced, for only the eight interlobular tentacles remain. Such a condition seems more likely to arise B. FIGURE 3. Retention and division of buds of C. capillata. A, bud forming scyphistoma attached to stalk of parent. B, double-headed strobila. C, strobila with three-headed scyphis- toma attached to stalk base. at the point of detachment of a bud from its parent than at the distal end of a newly attached planula. This is somewhat forcibly indicated by the example shown in Figure 3C. The parent scyphistoma is well advanced in its metamorphosis into an ephyra. The associated stalk may possibly have arisen from a bud similar to that seen in Figure 2D, but one arising even more proximally, or equally, if not more. 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
