Appearance
Large carapace breadth: 25.3 mm ± 5.84 (sd), 95% range: 13.9–36.8 mm

Tubuca arcuata, (De Haan, 1835)
Tubuca arcuata, the bowed fiddler crab, is a species of fiddler crab in the family Ocypodidae. It can be found in China, Taiwan, Korea, and Japan.
Large carapace breadth: 25.3 mm ± 5.84 (sd), 95% range: 13.9–36.8 mm
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