Calappa (crab)

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Temporal range: Paleogene - Recent
Calappa hepatica.JPG
Calappa hepatica
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Family: Calappidae
Genus: Calappa
Weber, 1795 [1]

41 extant species: see text

Calappa is a genus of crabs known commonly as box crabs or shame-faced crabs. The name box crab comes from their distinctly bulky carapace, and the name shame-faced is from anthropomorphising the way the crab's chelae (claws) fold up and cover its face, as if it were hiding its face in shame.[2]


There are 43 extant species in the genus:[3]

Extinct species[edit]

A further 18 species are known only from fossils.[4][5]

  • Calappa chungii Hu and Tao 1985
  • Calappa costaricana Rathbun 1918
  • Calappa earlei Withers 1924
  • Calappa heberti Brocchi 1883
  • Calappa lanensis Rathbun 1926
  • Calappa laraensis Van Straelen 1933
  • Calappa madoerensis Van Straelen 1938
  • Calappa oboui Hu and Tao 1996
  • Calappa pavimenta Schweitzer et al. 2006
  • Calappa praelata Lorenthey 1929
  • Calappa protopustulosa Noetling 1901
  • Calappa restricta Milne-Edwards 1873
  • Calappa robertsi Ross 1964
  • Calappa sahelensis Van Straelen 1936
  • Calappa sangiranensis Van Straelen 1938
  • Calappa sexapinosa Morris and Collins 1991
  • Calappa zinsmeisteri Feldmann and Wilson 1988
  • Calappa zurcheri Bouvier 1899
Fossil of Calappa species

Fossils of within this genus can be found in sediment of Europe, United States, Mexico, Central America, Australia and Japan from Paleogene to recent (age range: 33.9 to 0.0 Ma).


  1. ^ "Calappa Weber, 1795". Integrated Taxonomic Information System. Retrieved August 21, 2011.
  2. ^ "The Japanese Shame-Faced Crab". Creature Feature. Western Australian Museum. Retrieved 5 July 2020.
  3. ^ P. K. L. Ng; D. Guinot; P. 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.
  4. ^ Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009). "A classification of living and fossil genera of decapod crustaceans" (PDF). Raffles Bulletin of Zoology. Suppl. 21: 1–109. Archived from the original (PDF) on 2011-06-06.
  5. ^ Fossilworks

External links[edit]

  • Media related to Calappa at Wikimedia Commons