Trapeziidae Miers, 1886 and Tetraliidae Castro, Ng and Ahyong, 2004 (Crustacea, Brachyura): coral crabs of Western Australia, with notes on their biogeography

Nineteen species in four genera of coral crabs (Trapeziidae and Tetraliidae) are listed as associated with reef corals and other colonial anthozoans in Western Australia: two Quadrella species, nine Trapezia, six Tetralia, and two Tetraloides. Although species diversity of coral crabs decreases with latitude along the coast of Western Australia, it remains relatively high in the low-diversity, high latitude coral communities along their southernmost limit on the southwestern coast.