Liocarcinus marmoreus

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Liocarcinus marmoreus
Liocarcinus marmoreus 2.jpg
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Family: Portunidae
Genus: Liocarcinus
Species: L. marmoreus
Binomial name
Liocarcinus marmoreus
(Leach, 1814)
Synonyms [1][2]
  • Portunus marmoreus Leach, 1814
  • Polybius marmoreus (Leach, 1814)

Liocarcinus marmoreus, sometimes known as the marbled swimming crab, is a species of crab found in the northern Atlantic Ocean and North Sea.[3] It may be found on sand and gravel in the sublittoral and lower littoral zones,[4] down to a depth of 84 metres (276 ft),[5] from the Azores and the Alboran Sea (the westernmost section of the Mediterranean Sea) as far north as the Shetland Islands.[2] It reaches a carapace length of 35 millimetres (1.4 in),[5] and is distinguished from other similar species by the presence of three similarly-sized teeth on the edge of the carapace, between the eyes, and by the marbled colouration on the carapace.[3] L. marmoreus is sometimes parasitised by the barnacle Sacculina.[4]


  1. ^ Peter K. L. Ng, Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1–286. Archived from the original (PDF) on 2011-06-06. 
  2. ^ a b Cédric d'Udekem d'Acoz (2003). "Polybius marmoreus (Leach, 1814)". Crustikon – Crustacean photographic website. Tromsø MuseumUniversity of Tromsø. Archived from the original on February 19, 2008. Retrieved September 3, 2007. 
  3. ^ a b "Crabs of the Southern North Sea". Sea Fisheries Department. October 8, 2001. Archived from the original on December 18, 2007. Retrieved September 3, 2007. 
  4. ^ a b E. Wilson (November 10, 2006). "Marbled swimming crab - Liocarcinus marmoreus". Marine Life Information Network for Britain & Ireland. Retrieved September 3, 2007. 
  5. ^ a b M. J. de Kluijver & S. S. Ingalsuo. "Liocarcinus marmoreus". Crustacea: Macrobenthos of the North Sea. Universiteit van Amsterdam. Retrieved September 3, 2007. [permanent dead link]