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Fig. 3. The spectral signatures of U. vomeris carapace colours. (A)
Photographs of male and female crabs, shortly after capture and after spectral
reflectance measurements were taken using a fibre optics spectrograph (Ocean
Optics USB2000) from two lateral and one central location on the blue-white
carapace areas. Reflectance spectra for the same crabs are shown in (B), blue
for males and purple for females.