Native to:
Andaman Is.,
Assam,
Bangladesh,
Bismarck Archipelago,
Cambodia,
Caroline Is.,
Chagos Archipelago,
China South-Central,
China Southeast,
Christmas I.,
Cocos (Keeling) Is.,
Comoros,
Cook Is.,
Fiji,
Gilbert Is.,
Hainan,
India,
Japan,
Jawa,
Kazan-retto,
Korea,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Madagascar,
Malaya,
Maldives,
Marianas,
Marshall Is.,
Mozambique,
Mozambique Channel Is.,
Myanmar,
Nansei-shoto,
New Caledonia,
New South Wales,
Nicobar Is.,
Niue,
Norfolk Is.,
Northern Territory,
Ogasawara-shoto,
Philippines,
Queensland,
Samoa,
South China Sea,
Sri Lanka,
Sumatera,
Taiwan,
Thailand,
Tibet,
Tonga,
Tubuai Is.,
Tuvalu,
Vanuatu,
Vietnam,
Wallis-Futuna Is.
Introduced into:
Seychelles