. Comparative animal physiology. Physiology, Comparative; Physiology, Comparative. Chromatophores and Color Change 681 The chromatophores of the vertebrates in general resemble those of crusta- ceans. Unlike the latter, however, they usually comprise single cells and are for the most part monochromatic. The predominant pigment is melanin, and it is the activity of the melanophores which is principally responsible for the conspicuous color changes in this group. In many vertebrates reflect- ing white chromatophores, the guanophores or leucophores are also found. Chromatophores known as lipophor
. Comparative animal physiology. Physiology, Comparative; Physiology, Comparative. Chromatophores and Color Change 681 The chromatophores of the vertebrates in general resemble those of crusta- ceans. Unlike the latter, however, they usually comprise single cells and are for the most part monochromatic. The predominant pigment is melanin, and it is the activity of the melanophores which is principally responsible for the conspicuous color changes in this group. In many vertebrates reflect- ing white chromatophores, the guanophores or leucophores are also found. Chromatophores known as lipophores, containing fat-soluble red pigment (erythrophores) or yellow pigment (xanthophores), are often present. These pigments are commonly xanthophyll or derivatives of it.'*^ In addition to these more conventional types of pigment cells, there are sometimes glisten- ing bluish-green bodies, the iridocytes, whose color and color changes are structural ones dependent on the form, arrangement, and movements of fine, platelike 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 Prosser, C. Ladd (Clifford Ladd), 1907-; Bishop, David W. Philadelphia, Saunders
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