Color

Three patterns have been observed: carapace and abdomen uniformly dark, usually brown or red (pattern 1 of Baba, 1979), dark brown with two narrow light stripes (pattern 3 of Baba, 1979), and alternating dark and light longitudinal stripes (pattern 4 of Baba, 1979). Pereiopods uniformly dark (red or brown) or yellowish.