{{Short description|Family of crabs}} {{distinguish|Trapezidae}} {{Automatic taxobox | image = Trapezia tigrina - Red Spotted Guard Crab.jpg | image_caption = ''Trapezia tigrina'' | display_parents = 3 | taxon = Trapeziidae | authority = Miers, 1886<ref name=WoRMS>{{cite WoRMS |author=Davie, Peter |year=2015 |title=''Trapeziidae'' Miers, 1886 |id=106768 |accessdate=2015-07-04}}</ref> | type_genus = ''Trapezia'' | type_genus_authority = Latreille, 1825 }}
'''Trapeziidae''' is a family of crabs, commonly known as '''coral 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.<ref>{{cite book |author= Peter Castro |chapter= Trapeziid crabs (Brachyura : Xanthoidea : Trapeziidae) of New Caledonia, eastern Australia, and the Coral Sea |editor= B. Richer de Forges |title= Les fonds meubles des lagons de Nouvelle-CalMonie (Sédimentologie, Benthos) |series= Études & Thèses, volume 3 |location=Paris |publisher=ORSTOM |pages=59–107 |isbn=2-7099-1376-3 |url=http://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/Et_Th_cm/010013924.pdf }}</ref> Members of the family Tetraliidae were previously included in the Trapeziidae, but the similarities between the taxa is the result of convergent evolution.<ref>{{cite journal |author=Peter Castro, Peter K. L. Ng & Shane T. Ahyong |year=2004 |title=Phylogeny and systematics of the Trapeziidae Miers, 1886 (Crustacea: Brachyura), with the description of a new family |journal=Zootaxa |volume=643 |pages=1–70 |isbn=1-877354-55-4 |url=http://www.mapress.com/zootaxa/2004f/z00643f.pdf |format=PDF excerpt}}</ref>
==Subfamilies and genera== The World Register of Marine Species lists the following subfamilies and genera:<ref name=WoRMS/>
''Calocarcininae'' <small>Stevcic, 2005</small> *''Calocarcinus'' <small>Calman, 1909</small> *''Philippicarcinus'' <small>Garth & Kim, 1983</small> *''Sphenomerides'' <small>Rathbun, 1897</small> ''Quadrellinae'' <small>Stevcic, 2005</small> *''Hexagonalia'' <small>Galil, 1986</small> *''Hexagonaloides'' <small>Komai, Higashiji & Castro, 2010</small> *''Quadrella'' <small>Dana, 1851</small> ''Trapeziinae'' <small>Miers, 1886</small> *''Trapezia'' <small>Latreille, 1828</small>
==References== {{Reflist}}
{{Taxonbar|from=Q2441820}}
Category:Crabs Category:Taxa named by Edward J. Miers Category:Decapod families
{{Trapezioidea-stub}}