 The species can be ivory-yellow in colour or translucent, but exhibits pigmented red chromatophores in the carapace and telson.The intensity of colouration, believed to be associated with the species' crepuscular behaviour, varies with contraction or expansion of the chromatophores in response to light and temperature conditions; in shaded areas, individuals tend to have a deeper red colour.Juveniles are more translucent than adults.