Trapeziidae is a family of

crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the ...

s, commonly known as coral crabs. All the species in the family are found in a close

symbiosis Symbiosis (from Greek , , "living together", from , , "together", and , bíōsis, "living") is any type of a close and long-term biological interaction between two different biological organisms, be it mutualistic, commensalistic, or parasit ...

with cnidarians. They are found across the

Indo-Pacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...

, and can best be identified to the species level by the colour patterns they display. Members of the family

Tetraliidae Tetraliidae is a family of crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely un ...

were previously included in the Trapeziidae, but the similarities between the taxa is the result of convergent evolution.

Subfamilies and genera

The World Register of Marine Species lists the following subfamilies and genera: '' Calocarcininae'' Stevcic, 2005 *'' Calocarcinus'' Calman, 1909 *'' Philippicarcinus'' Garth & Kim, 1983 *'' Sphenomerides'' Rathbun, 1897 '' Quadrellinae'' Stevcic, 2005 *'' Hexagonalia'' Galil, 1986 *'' Hexagonaloides'' Komai, Higashiji & Castro, 2010 *''

Quadrella ''Morisonia'' is a genus of flowering plants in the family Capparaceae, found across the Americas from the United States to Argentina. It was recently enlarged with New World ''Capparis'' species due to existing taxonomic instability. They tend ...

'' Dana, 1851 '' Trapeziinae'' Miers, 1886 *'' Trapezia'' Latreille, 1828

References

External links

* Crabs Taxa named by Edward J. Miers Decapod families {{crab-stub