Gandalfus yunohana

Gandalfus yunohana is a species of crab found on hydrothermal vents on the eastern edge of the Philippine Sea Plate south of Japan. It lives at shallower depths than other members of the family Bythograeidae, at {convert|420|-|1380|m|abbr=on}. Because no light penetrates to such depths, the eyes of G. yunohana are immobile and unpigmented. Males h...
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