Pachygrapsus marmoratus (Fabricius, 1787)
marbled shore crab
Pachygrapsus marmoratus
photo by FAO

Family:  Grapsidae (shore, marsh, and talon crabs)
Max. size:  4 cm CW (male/unsexed)
Environment:  benthic; marine
Distribution:  Eastern Atlantic and the Mediterranean.
Diagnosis:   
Biology:  Intertidal (Ref. 107021). It is found on rocks from upper to middle shore, also in crevices in breakwaters and pier piles or similar habitats (Ref. 842). Omnivore but cannot be simply considered an opportunistic feeder (Ref. 107021). Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer (Ref. 833).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans: 
Country info:  C: Ref. 106752.

Entered by: Bailly, Nicolas - 11.12.05
Modified by: Parducho, Vina Angelica - 14.01.16

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