Lissocarcinus orbicularis

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Lissocarcinus orbicularis
Lissocarcinus orbicularis - Harlequin Crab.jpg
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Family: Portunidae
Genus: Lissocarcinus
Species: L. orbicularis
Binomial name
Lissocarcinus orbicularis
Dana, 1852
Synonyms [1]

Lissocarcinus pulchellus Müller, 1887

Lissocarcinus orbicularis, common names sea cucumber crab[2] and red-spotted white crab,[1] is a species of crabs in the family Portunidae.[1]

Distribution and ecology[edit]

Lissocarcinus orbicularis grows to about 4 cm (1.6 in), and has a smooth, glabrous carapace with distinctive spots. The carapace is slightly shorter than it is broad and has a highly convex shape.

This species has a commensalistic relationship with certain sea cucumbers. It can be found within the gut cavity, or near the oral tentacles and anus of sea cucumber species Holothuria whitmaei, Actinopyga obesa, and most commonly Holothuria atra.[3]


The type locality for this species is Fiji, and it is widely distributed in the Indo-Pacific. It is also found in the Red Sea.


  1. ^ a b c Peter Davie (2012). "Lissocarcinus orbicularis Dana, 1852". World Register of Marine Species. Retrieved May 27, 2012. 
  2. ^ Tsune Sakai. "Sea cucumber crab (Lissocarcinus orbicularis)". Crabs of Japan. Marine Species Identification Portal. Retrieved June 19, 2012. 
  3. ^ Paula Ayotte (2005). "The relationship between holothurians and the portunid crab Lissocarcinus orbicularis". University of Hawaii at Hilo. hdl:10125/21792. 

Further reading[edit]

  • Lyskin, S. A. & T. A. Britayev (2001). An association of symbiotic crab Lissocarcinus orbicularis Dana, 1852 (Decapoda, Portunidae) with tropical holothurians. Fifth International Crustacean Congress and Summer 2001 meeting of The Crustacean Society. Melbourne. 
  • Lyskin, S. A. & T. A. Britayev (2003). "The pattern of Vietnamese holothurians symbionts interactions". Proceedings of the 11th International Echinoderm Conference, Munich. 
  • R. Jared Halterman (December 1, 2006). "The incidence of infestation of Holothuria atra by Lissocarcinus orbicularis" (DOC). Brigham Young University–Hawaii. 

External links[edit]