. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 234 H ARC ITT. [VOL. II. were divided into symmetrical segments, the results showed no less than thirty per cent of variation. On the variations shown in their aboral confluence, or union with the gastric pouch, the calculations gave per cent. Of the entire number examined only a single specimen was found having but two radial canals and two gonacls. These were at an angle of 180 degrees, , dividing the bell into two symmetrical halves, as shown in Fig. 8, excepting alone the rela-. FIG. 8. tive number of tentacles
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 234 H ARC ITT. [VOL. II. were divided into symmetrical segments, the results showed no less than thirty per cent of variation. On the variations shown in their aboral confluence, or union with the gastric pouch, the calculations gave per cent. Of the entire number examined only a single specimen was found having but two radial canals and two gonacls. These were at an angle of 180 degrees, , dividing the bell into two symmetrical halves, as shown in Fig. 8, excepting alone the rela-. FIG. 8. tive number of tentacles upon each half. One other specimen, however, was found having only two canals, similarly disposed and with a similar number and disposition of gonads ; but in it there was a rather evident rudiment of a third springing from the peripheral end of one of the canals, thus destroying the bilateralism characteristic of the first. The largest number of canals found was six. This, while much more common than those with two, was much less so than specimens with three and five. Seven specimens in all were found having this number, and in one of these the sixth was clue to the evident forking of one of the five apparently. 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
