− | In species that have rapid colour changes (''Chamaeleo'' spp. and ''Anolis'' spp.) cells called chromatophores are abundant and under hormonal or neurologic control (or sometimes both). Chromatophores are pigmented cells, located just beneath the basal lamina, that may react to stimulation from light or changes in temperature. | + | In species that have rapid colour changes (''Chamaeleo'' spp. and ''Anolis'' spp.), cells called chromatophores are abundant and under hormonal or neurologic control (or sometimes both). Chromatophores are pigmented cells, located just beneath the basal lamina, that may react to stimulation from light or changes in temperature. |