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| crabs text index | photo index |
| Phylum Arthropoda > Subphylum Crustacea > Class Malacostraca > Order Decapoda > Brachyurans > Family Portunidae |
| Orange-clawed
swimming crab Charybdis anisodon* Family Portunidae updated Jun 2020 Where seen? This swimming crab is sometimes seen, among seagrasses on our Northern shores. Features: Body width 5-7cm. Body somewhat fan-shaped with 6 spines on the sides - 4 small rounded ones and the last two sharper and longer. The eyes not very far apart. Between the eyes there are 8 small rounded lobes. Last pair of legs are paddle-shaped and rotate like boat propellers, so the crab swims well in all directions. It is a fully marine crab and cannot live long out of water. Body and legs olive green. Claws olive green on the outside, orange on the inside and towards the pincers which has white tips |
 Pasir Ris, Mar 15 |
 6 spines on the body side. |
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 Pasir Ris, Mar 15 |
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*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.
| Orange-clawed swimming crabs on Singapore shores |
On wildsingapore
flickr
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| Other sightings on Singapore shores |
| Acknowledgement With grateful thanks to Marcus Ng for identifying this crab. Links
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