Figure 4. Distribution of erythrophores, melanophores and fluorescent chromatophores in the interradial membrane of a dorsal fin of E. pellucida.

a) Erythrophores (red) and melanophores (black) are visible in bright field microscopy. b) Fluorescent chromatophores appear in fluorescence microscopy. c) Overlay of a) and b). Note that erythrophores, melanophores and fluorescent chromatophores are spatially distributed and can be distinguished. Scale bar  = 400 µm.