. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SYMMETRY AND REGULATION IN MNEMIOPSIS 301 formed (Figs. 9, 15 and 17). During regeneration the two adjacent adtentacular rows and a single adesophageal row on either side of these connected to each other. As this was taking place the tip of the stomo- deum formed a single hull) (Fig. 18), which immediately divided to form two hulhs (Fig. 4), and each of these became connected with a set of ST. FIG. 2. An adesophageal view of Mnemiopsis showing a stomodeal graft after the second day. FIG. 3. This drawing shows an apical organ
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SYMMETRY AND REGULATION IN MNEMIOPSIS 301 formed (Figs. 9, 15 and 17). During regeneration the two adjacent adtentacular rows and a single adesophageal row on either side of these connected to each other. As this was taking place the tip of the stomo- deum formed a single hull) (Fig. 18), which immediately divided to form two hulhs (Fig. 4), and each of these became connected with a set of ST. FIG. 2. An adesophageal view of Mnemiopsis showing a stomodeal graft after the second day. FIG. 3. This drawing shows an apical organ grafted to the adtentacular re- gion and about mid-way between the ends of the body. The drawing was made on the fourth day after the operation. FIG. 4. This shows the usual features at the apical end of the body during regeneration following the removal of an apical part of the animal. The two bulbs can be seen lying at the upper end of the stomodeum. This drawing was made on the fourth day. AE, adesophageal row; AT, adtentacular row; B, stomodeal bulb; G, graft; P, paragastric canal; 57', stomodeum; T', tentacular canal. four canals of the plate rows. The two bulbs became smaller until they assumed the size of a tube or canal and became the radial canals. At about this time also a single, apical organ formed at the tip of the sto- modeum between the two bulbs. The apical plate of this organ was regularly laid down on a line between each of the two adjacent pairs of adesophageal rows (Fig. 9).. 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 L
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
