English: Pachydactylus rangei under UV illumination and under visible light. (a,b) Female P. rangei under UV illumination at 365 nm and (visible) dim background illumination; scale bars = 10 mm. (c) P. rangei under visible light in lateral (c1, male), dorsal (c2, female), and ventral view (c3, female). (d) The respective specimens illuminated with UV light (maximum emission at 365 nm) and dim background illumination in lateral view (d1, male), dorsal (d2, female) and ventral view (d3, female) showing neon-green fluorescence around the eyes and along a ventrolateral stripe. Note that the 365 nm light used to produce this fluorescence is far from the 465 nm peak excitation wavelength. (e) Hatchling, nine days post hatching, showing both the green dermal fluorescence seen in adults (indicated by red arrows) as well as blue bone fluorescence at the vertebrae, skull and the phalanges through its translucent skin. (f,g) P. rangei approaching each other and licking water from each other’s bodies (husbandry observation).