Taxon tree

Infraorder Anomura
Infraorder Brachyura
- Section Eubrachyura
  - Subsection Heterotremata
  - Subsection Thoracotremata
    - Superfamily Cryptochiroidea
    - Superfamily Grapsoidea
    - Superfamily Ocypodoidea
    - Superfamily Pinnotheroidea
      - Family Aphanodactylidae
        
        Genus Ankerius
        
        Genus Gandoa
        
        Genus Gustavus
        
        Species Gustavus mecognathus
        
        Genus Lichtylus
        
        Genus Selwynia
        
        Genus Takedactylus
      - Family Pinnotheridae
- Section Podotremata

Gustavus

Genus, Ahyong & Ng, 2009