- English Common Name
- Lemon-clawed Fiddler Crab
- Scientific name
- Uca perplexa
- Taxonomy
- Order: Decapoda, Family: Ocypodidae
- Size
- About 2 cm (width of the shell)
- Species Distribution
- South of Amamioshima Island
- Okinawan Common Name
- Kata-chimi-ganigwar (general term for fiddler crabs)
- The shell is elongated rectangular and dark-blue colored with white striped pattern. Males have one big claw although females have only small claws. The appearance is similar to Uca lactea distributed in Kyushu region to the Izu peninsula, Japan, but the distribution and its ecology are different between the two species. Male fiddler crabs wave their bigger claws to find a partner for mating. Their smaller claws are used for scooping mud. Scooped mud goes through the filter in the mouth to acquire organic matter or microorganisms.
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- Updated June 2017
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