ɪt ɹˈeɪndʒᵻz ɪn kˈʌlɚ fɹʌm ɡɹˈeɪ tə bɹˈaʊn tə jˈɛloʊ, ænd ðə dˈoːɹsəl sˈɜːfɪs pˈætɚnz vˈɛɹi ɡɹˈeɪtli bᵻtwˌiːn spˈɛsɪmənz.
It ranges in colour from grey to brown to yellow, and the dorsal surface patterns vary greatly between specimens.