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Phylum Arthropoda > Subphylum Crustacea > Class Malacostraca > Order Decapoda > Brachyurans > Superfamily Ocypodoidea > Genus Uca
Rosy fiddler crab
Uca rosea*
Family Ocypodidae
updated Dec 12
Where seen? This small fiddler crab with a rather short and stout enlarged pincer is rarely seen, usually in the back mangroves under vegetation.

Features: Body width 1-1.5cm. Body squarish. The male fiddler crab's enlarged pincer length about the same as the body width. The enlarged pincer's outer palm is pimply with a groove on the lower edge to the immovable finger. The tips of the fingers are short, and there isn't a wide gape between the upper and lower finger. The palm is red, pink or purplish, the fingers are white. Body colours and patterns vary: black with white or bluish speckles, or blotches. Eyes black or dark red on long stalks pale to bright red, walking legs short black.

Status and threats: The Rosy fiddler crab is listed as 'Endangered' in the Red List of threatened animals of Singapore.

Sungei Buloh, Sep 09
Sungei Buloh, Sep 09

Pasir Ris Park, Apr 10

Pasir Ris Park, Mar 12

Chek Jawa, Dec 09

Pasir Ris Park, Apr 10

Pasir Ris Park, Apr 10

Chek Jawa, Oct 02

*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.

Rosy fiddler crabs on Singapore shores

Photos of Rosy fiddler crabs for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

FREE photos from wildsingapore tagged with Uca. Make your own badge here.
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