melanophore stimulatory hormone
melanophore stimulatory hormonea hormone in the form of a PEPTIDE produced by the ADENOHYPOPHYSIS. It effects colour changes in fish, amphibians and reptiles by changing melanin distribution within the cells (see MELANOPHORE).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005