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Speckled swimming crab
speckled swimming crab
encrusting red algae
encrusting orange sponge
3 creatures detected
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Speckled swimming crab

Lissocarcinus laevis

MEDIUM
Family
Portunidae
Also known as
spotted swimming crab, lacy crab
Description
A medium-sized swimming crab characterized by its blue-gray carapace adorned with white speckles and mottled patterning. Like other portunid crabs, it possesses paddle-shaped rear legs adapted for swimming. It is an omnivore, feeding on algae, detritus, and small invertebrates.
Habitat
Found on rocky reefs and coral rubble in the Indo-Pacific region, typically in shallow to moderate depths (0–30 m). Commonly rests on encrusting organisms and algae-covered rock surfaces.
Conservation status
Least Concern
Notes
Identification to species is tentative; the mottled blue-white pattern and slender legs are consistent with Lissocarcinus laevis or a closely related portunid. The crab's chelipeds (claws) are not fully visible, making definitive ID slightly challenging. Image quality is good overall with strong natural color and detail.
Creatures detected3 in frame
  • speckled swimming crabinvertebrate
  • encrusting red algaeplant_algae
  • encrusting orange spongeinvertebrate