. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 608 G. FREEMAN TABLE III The differentiation o/~ Nanomia embryo halves isolated at different times during development Cor- Kind of differentiation responding Isolate Time of Number member Pneumato- Vacuolated Posterior type isolation of cases of pair phore cells Tentacle1 Mouth pigment Oral 8-cell st. 9 8 0 3 4(1) 9 7 6-7 h 5 5 0 1 4(1) 4 2 12-13 h 7 7 0 1 7(2) 7 6 18-19 h 7 2 0 1 7(2) 7 5 31-41 h 2 2 0 0 2(2) 2 2 Aboral 8-cell st. 9 7 9 4(0) 0 4 6-7 h 7 3 7 3(0) 0 0 12-13 h 7 6 7 5 (0) 0 1 18-19 h 3 1 3 3(0) 0 3 31-41 h 6 5


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 608 G. FREEMAN TABLE III The differentiation o/~ Nanomia embryo halves isolated at different times during development Cor- Kind of differentiation responding Isolate Time of Number member Pneumato- Vacuolated Posterior type isolation of cases of pair phore cells Tentacle1 Mouth pigment Oral 8-cell st. 9 8 0 3 4(1) 9 7 6-7 h 5 5 0 1 4(1) 4 2 12-13 h 7 7 0 1 7(2) 7 6 18-19 h 7 2 0 1 7(2) 7 5 31-41 h 2 2 0 0 2(2) 2 2 Aboral 8-cell st. 9 7 9 4(0) 0 4 6-7 h 7 3 7 3(0) 0 0 12-13 h 7 6 7 5 (0) 0 1 18-19 h 3 1 3 3(0) 0 3 31-41 h 6 5 6 6(1) 0 5 Lateral 2-cell st. 16 4 7 16 16(4) 16 12 8-cell st. 8 4 5 7 7(0) 7 4 6-7 h 6 3 0 5 4(0) 5 2 12-13 h 6 3 4 6 6(2) 6 4 Oral 1st cleavage-2 19 9 16 18(4) 19 17 cell ' The parenthesis indicates the number of cases that formed tentacles with nematoband brackets. of the Nanomia embryo can regulate in much the same way that the oral region of the Muggiaea embryo regulates at later developmental stages. 3) As a control experiment embryos were cut into lateral halves at the two cell. 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