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However, there are differences between the biology of melanophores and that of melanocytes. In addition to eumelanin, melanocytes can generate a yellow/red pigment called phaeomelanin. [citation needed] The purple-striped dottyback, Pseudochromis diadema, generates its violet stripe with an unusual type of chromatophore.
Fish and frog melanophores are cells that can change colour by dispersing or aggregating pigment-containing melanosomes. A melanosome is an organelle found in animal cells and is the site for synthesis, storage and transport of melanin , the most common light-absorbing pigment found in the animal kingdom .
Each color is indicated by the three types of chromatophore cells: erythrophores, melanophores, and xanthophores. The first type is the erythrophores, which contains reddish pigments such as carotenoids and pteridines. The second type is the melanophores, which contains black and brown pigments such as the melanins.
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Melanocytes, and the parallel melanophores found in fishes, amphibians, and reptiles, are derived from a strip of tissue in the embryo called the neural crest. Stem cells in the neural crest give rise to the cells of the autonomic nervous system, supportive elements of the skeleton such as chondrocytes, cells of the endocrine system, and ...