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Trapezia tigrina - Red Spotted Guard Crab.jpg
Trapezia tigrina
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Superfamily: Trapezioidea
Family: Trapeziidae
Miers, 1886
Type genus
Latreille, 1825

Trapeziidae is a family of crabs. All the species in the family are found in a close symbiosis with cnidarians. They are found across the Indo-Pacific, and can best be identified to the species level by the colour patterns they display.[1] Members of the family Tetraliidae were previously included in the Trapeziidae, but the similarities between the taxa is the result of convergent evolution.[2]

The family contains the following genera:[3]


  1. ^ Peter Castro. B. Richer de Forges, ed. Les fonds meubles des lagons de Nouvelle-CalMonie (Sédimentologie, Benthos) (PDF). Études & Thèses, volume 3. Paris: ORSTOM. pp. 59–107. ISBN 2-7099-1376-3. 
  2. ^ Peter Castro, Peter K. L. Ng & Shane T. Ahyong (2004). "Phylogeny and systematics of the Trapeziidae Miers, 1886 (Crustacea: Brachyura), with the description of a new family" (PDF EXCERPT). Zootaxa 643: 1–70. ISBN 1-877354-55-4. 
  3. ^ 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. 

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