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| crabs text index | photo index |
| Phylum Arthropoda > Subphylum Crustacea > Class Malacostraca > Order Decapoda > Brachyurans > Family Grapsidae |
| Sally-light-foot
crab Grapsus albolineatus Family Grapsidae updated Aug 10 Where seen? This colourful and swift crab is sometimes seen on our some of our rocky shores. Small groups may clamber noisily among rocks on seawalls or natural rocks. Sometimes, it may also be seen on the reef flats near the rocky shore. It is more active at night and seldom seen during daylight. Very shy, it disappears instantly into crevices at the slightest sign of danger. Features: 5-6cm. Body circular, dark with a pattern of light spots in bands at the lower portion of the body. Short small flattened pincers. Very long walking legs tipped with pointy claws. With these legs, the crab clings tightly so it doesn't get washed away in the waves, and can scramble quickly among slippery rocks. Colours seen range from reddish to bluish and greenish. Males have larger pincers than the females. What does it eat? It is a scavenger and also eats seaweeds. It has relatively small pincers that work like scissors to snip and scrape off edible titbits. |
 Kusu Island, Apr 05  |
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Sally-light-foot crabs on Singapore shores
 Sisters Islands, Jan 06  Moult at top left corner, crab in bottom right. |
 Sisters Islands, Jul 04  A moulted crab (blue) with moult (orange). |
 Kusu Island, Apr 05  |
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