. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3O Afters Undulating. 57'Art* •ers CHART 1. THE RELATION BETWEEN RAY STRUCTURE AND CEN- TRAL BODY STRUCTURE UNDER OPTIMUM CONDITIONS Central bodies were studied in metaphase first-cleavage figures in Chaetopterus eggs, after using Boveri's picro-acetic fixation, and the standard slide-making procedure. Result: Central body structure is related to ray structure: centers are " disrupted ", , empty or containing scattered material, if rays are rippled in shape; centers are "even", , homogeneously fil
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3O Afters Undulating. 57'Art* •ers CHART 1. THE RELATION BETWEEN RAY STRUCTURE AND CEN- TRAL BODY STRUCTURE UNDER OPTIMUM CONDITIONS Central bodies were studied in metaphase first-cleavage figures in Chaetopterus eggs, after using Boveri's picro-acetic fixation, and the standard slide-making procedure. Result: Central body structure is related to ray structure: centers are " disrupted ", , empty or containing scattered material, if rays are rippled in shape; centers are "even", , homogeneously filled and stained like the ray area, if rays are undulating. Centrioles are not demonstrated. The slightly rippled rays are obviously intermediate between rippled and undulating rays. Since typically rippled rays are always associ- ated with disrupted centers (empty or scattered) and typically un- dulating ones with evenly filled centers, the members of this inter- mediate, or slightly rippled group will hereafter be included with either the rippled or the undulating class, depending upon which group the aster most resembles. Thus the four classes of asters illustrated in Chart 1, in which the centers are empty or scattered and rays either. 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
