Sponge Crab
Dromia dormia
9.93368, 123.37
Field Notes
Description:
Dromia dormia, the sleepy sponge crab or common sponge crab, is the largest species of sponge crab. It grows to a carapace width of 20 cm (8 in) and lives in shallow waters across the Indo-Pacific region.
Dromia dormia is the largest species in the family Dromiidae, at up to 200 millimetres (7.9 in) across the carapace for males, and up to 172 mm (6.8 in) for females.
Habitat:
Dromia dormia has a widespread distribution in the Indo-Pacific region. Its range extends from East Africa (including Madagascar, the Seychelles and Mauritius) and the Red Sea through the Malay Archipelago, south to Queensland (Australia), north to China and Japan and as far east as Hawaii and French Polynesia. It is mostly found in shallow waters, with the deepest record being 112 m
Notes:
Like other related crabs, D. dormia camouflages itself by carrying a sponge on its back, which it cuts to size with its claws, and then holds in place with its last two pairs of legs. Instead of a sponge, D. dormia has occasionally been observed carrying other materials, including a hollow piece of wood, and the sole of a discarded shoe
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