. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. N = 1400 t = 38 528 SEM= 0 179 H'= 744 X!= 5 531 Asymmetric I 20 I 25 I 45 I 50 \ 55 I 65 I 80 I 90 N = 2500 f =49996 SEM=0200 H ' = 1244 2= 0058 Symmetric N = 1800 T = 62 128 SEW, 0 202 H'= 946 4 702 Asymmetric. FIGURE 3. Frequency distributions of oocyte diameters ofAsterias riibens (after McCall transformation), a: for the resting stage (stage 1; substages la and Ib); b: for the early growth stage (stage 2; substages 2a and 2b); c: for the stage of late growth and partial maturation (stage 3; substages 3a and 3b); d: for


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. N = 1400 t = 38 528 SEM= 0 179 H'= 744 X!= 5 531 Asymmetric I 20 I 25 I 45 I 50 \ 55 I 65 I 80 I 90 N = 2500 f =49996 SEM=0200 H ' = 1244 2= 0058 Symmetric N = 1800 T = 62 128 SEW, 0 202 H'= 946 4 702 Asymmetric. FIGURE 3. Frequency distributions of oocyte diameters ofAsterias riibens (after McCall transformation), a: for the resting stage (stage 1; substages la and Ib); b: for the early growth stage (stage 2; substages 2a and 2b); c: for the stage of late growth and partial maturation (stage 3; substages 3a and 3b); d: for the maturation stage (stage 4; substages 4a and 4b). < , respectively) and the increase of degenerating oocytes distinguishes stage 3 from stage 4 (P < ). The amount of cell-debris separates stage 1 and stage 4 from the others (P < , P < , respectively); the number of phagocytozing cells 2. Detail of an ovary. Brookes' trichrome staining. X520. C: Coelom; 1: outer part of the ovarian wall; 2: genital coelomic sinus; 3: inner part of the ovarian wall; 4: germinal epithelium; 5: oocytes; 6: cell-debris; 7: follicle cells; 8: ovarian lumen. 3. Detail of an ovarian lumen. Brookes' trichrome staining. X820. P: Phagocytozing cells; O: oocyte; N: nucleus; n: nucleolus. 4. Detail of an ovarian lumen. Brookes' trichrome staining. X520. L: Ovarian lumen; O: oocytes. surrounded by follicle cells (F); N: nucleus. Note the long cellular processes (arrows) of the follicle cells around the 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. :


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology