. The biology of marine animals. Marine animals; Physiology, Comparative. (d). Fig. Chromatophores of Different Fishes (a) Erythrophores from the red mullet Mullus barbatus and M. surmuletus, expanded and contracted; (b) melanophores of the rough hound Mustelus cam's, expanded and contracted; (c) combination of a red (stippled) and a black (solid colour) chromatophore from Gobius minutus; (d) melanophores of the weever-fish Trachinus vipera—{left) expanded, {right) contracted and associated with an iridosome; {e) combination of an iridophore (circles), melanophore (solid black), and xant
. The biology of marine animals. Marine animals; Physiology, Comparative. (d). Fig. Chromatophores of Different Fishes (a) Erythrophores from the red mullet Mullus barbatus and M. surmuletus, expanded and contracted; (b) melanophores of the rough hound Mustelus cam's, expanded and contracted; (c) combination of a red (stippled) and a black (solid colour) chromatophore from Gobius minutus; (d) melanophores of the weever-fish Trachinus vipera—{left) expanded, {right) contracted and associated with an iridosome; {e) combination of an iridophore (circles), melanophore (solid black), and xanthophores (cross-hatched) in the common goby, Gobius minutus. (After Ballowitz, 1913, and Parker, 1937.) trol. It is these quick contractions that are responsible for rapid colour changes and for the waves of colour which sweep over the animal (54). Although vision to a large extent controls chromatic changes in cephalo- pods, enucleated animals still show colour responses, which are no longer adaptive, however. The agencies then involved are the suckers, general tactile receptors and postural influences. When all the suckers are removed, there is considerable loss of tone in the chromatophores and the skin blanches. The chromatophores in the lower surface of the animal are. 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 Nicol, J. A. Colin (Joseph Arthur Colin), 1915-. New York, Interscience Publishers
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