Extraordinary photograph illustrating chromatophore morphology in the skin of Lolliguncula brevis. One large, black chromatophore and several yellow chromatophores can be seen. The radial array of muscle fibers attached to the pigment sac of the black chromatophore are clearly visible. The black chromatophore is fully contracted. When the muscle fibers contract, the chromatophore is stretched outward.
Lab or Wild: Lab; Origin: Nw gulf of mexico