Taxon tree

Infraorder Anomura
Infraorder Brachyura
- Section Eubrachyura
  - Subsection Heterotremata
  - Subsection Thoracotremata
    - Superfamily Cryptochiroidea
    - Superfamily Grapsoidea
      - Family Gecarcinidae
        
        Genus Cardisoma
        
        Genus Discoplax
        
        Genus Epigrapsus
        
        Genus Gecarcinus
        
        Species Gecarcinus lateralis
        
        Species Gecarcinus nobilii
        
        Species Gecarcinus quadratus
        
        Species Gecarcinus ruricola
        
        Genus Gecarcoidea
        
        Genus Johngarthia
        
        Genus Tuerkayana
      - Family Glyptograpsidae
      - Family Grapsidae
      - Family Leptograpsodidae
      - Family Percnidae
      - Family Plagusiidae
      - Family Sesarmidae
      - Family Varunidae
      - Family Xenograpsidae
    - Superfamily Ocypodoidea
    - Superfamily Pinnotheroidea
- Section Podotremata

Gecarcinus quadratus

Author:	Saussure, 1853
Family:	Gecarcinidae
Vernaculars:	Halloween crab
Photography:	Ondřej Radosta
WoRMS:	URL

Gecarcinus quadratus, Ondřej Radosta