Figure 1 Ultraviolet colour (UV) pattern development and diversity in damselfishes . A) From top to bottom, diversity of complex UV patterns in the adults of Pomacentrus amboinensis , P. bankanensis and P. chrysurus . B) Development of colouration in the visible (left) and UV (right) spectrum in P. amboinensis . From top to bottom, the larval, the juvenile and the adult stage. The onset of the UV patterns is highlighted in the juvenile stage. C) Examples of other species visually scored for presence/absence and type of UV pattern. From left to right: Neoglyphidodon melas (no UV reflectance/patterns), and Chrisyptera flavipinnis (simple UV pattern). D) Spectral reflectance measurements on the body (left) and on the operculum (right) of P. amboinensis adults (n = 2). The violet box highlights the UV spectrum.