to incubate its eggs. An international partnership of conservationists, donors, and local people have formed the Alliance for Tompotika Conservation, in an effort to raise awareness and protect the nesting grounds of these birds on the central-eastern arm of the island. Other endemic birds include the flightless snoring rail, the fiery-browed starling, the Sulawesi masked owl, the Sulawesi myna, the satanic nightjar and the grosbeak starling. There are around 350 known bird species in Sulawesi. Reptiles The larger reptiles of Sulawesi are not endemic and include reticulated and Burmese pythons, the Pacific ground boa, king cobras, water monitors, sailfin lizards, saltwater crocodiles and green sea turtles. An extinct giant tortoise, Megalochelys atlas, was formerly present, but disappeared by 840,000 years ago, possibly because of the arrival of Homo erectus. Similarly, komodo dragons or similar lizards appear to have inhabited the island, being among its apex predators. The smaller snakes of Sulawesi include nonendemic forms such as the gliding species Chrysopelea paradisi and endemic forms such as Calamaria boesemani, Calamaria muelleri, Calamaria nuchalis, Cyclotyphlops, Enhydris matannensis, Ptyas dipsas, Rabdion grovesi, Tropidolaemus laticinctus and Typhlops conradi. Similarly, the smaller lizards of Sulawesi include nonendemic species such as Bronchocela jubata, Dibamus novaeguineae and Gekko smithii, as well as endemic species such as Lipinia infralineolata and Gekko iskandari. Sulawesi also harbours several species of freshwater chelonians, two of which are endemic. They include the Forsten's tortoise and the Sulawesi forest turtle, both of which likely attribute their respective origins to the dispersal of the mainland Asian elongated tortoise and Malayan flat-shelled turtle from the then-exposed subcontinent of Sundaland during the Pleistocene epoch. The remaining two species consist of the non-endemic Malayan box turtle of the Wallacean subspecies, and the Asiatic softshell turtle. Amphibians The amphibians of Sulawesi include the endemic frogs Hylarana celebensis, H. macrops, H. mocquardi, Ingerophrynus celebensis, Limnonectes arathooni, L. larvaepartus, L. microtympanum, Occidozyga celebensis, O. semipalmata and O. tompotika as well as the endemic "flying frogs" Rhacophorus edentulus and R. georgii. Freshwater fish Sulawesi is home to more than 70 freshwater fish species, including more than 55 endemics. Among these are the genus Nomorhamphus, a species flock of viviparous halfbeaks containing 12 species that only are found on Sulawesi (others are from the Philippines). In addition to Nomorhamphus, the majority of Sulawesi's freshwater fish species are ricefishes, gobies (Glossogobius and Mugilogobius) and Telmatherinid sail-fin silversides. The last family is almost entirely