Results of the Rumphius Biohistorical Expedition to Ambon (1990). Part 7. The Trapeziidae (Crustacea: Brachyura: Xanthoidea) of Indonesia

Twenty-four species of trapeziid crabs, symbionts of scleractinian corals and other colonial cnidarians, are listed from Ambon and other locations throughout Indonesia. Sixteen of these species were collected by the Rumphius Biohistorical Expedition to Ambon (1990). Eight species (Quadrella reticulata Alcock, 1898, Tetraloides heterodactyla (Heller, 1861), Trapezia flavopunctata Eydoux & Souleyet, 1842, T. formosa Smith, 1869, T. garthi Galil, 1983, T. lutea Castro, 1997, T. punctipes Castro, 1997 and T. serenei Odinetz, 1984) are new records for Indonesia. The taxonomic status of Quadrella boopsis, Q. reticulata, Tetralia rubridactyla Garth, 1971 and Trapezia garthi Galil, 1983 are also revised. A key for the identification of the Indonesian species of Quadrella, Tetralia and Trapezia is given.