. The Biological bulletin. Biology; Zoology; Marine biology. Fig. 1 (left). A microphotograph (X 120) of a part of a fresh scale from a yellow fish. The partially contracted light colored melanophores are almost invisible. Fig. 2 (right). The same scale after treatment with dopa. Melanophores can now be readily located. may become variously distributed by a process of amoeboid migration characteristic of this type of cell. Such a period of segregation would mark the latest stage in development at which the critical cytoplasmic determination could occur in the variegated type and by inference i
. The Biological bulletin. Biology; Zoology; Marine biology. Fig. 1 (left). A microphotograph (X 120) of a part of a fresh scale from a yellow fish. The partially contracted light colored melanophores are almost invisible. Fig. 2 (right). The same scale after treatment with dopa. Melanophores can now be readily located. may become variously distributed by a process of amoeboid migration characteristic of this type of cell. Such a period of segregation would mark the latest stage in development at which the critical cytoplasmic determination could occur in the variegated type and by inference it is to be expected that the cytoplasmic determination in the uniformly colored types would occur at a corresponding stage. Dopa treatment has also been applied to the scales of the red and transparent forms of goldfish. In these fish (cf. Goodrich and Hansen, 1931) it is known that the melanophores disintegrate during an early 19. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectb, booksubjectzoology
