Gazetteer Asia: endemic to the Mekong basin where it has become rare due to overexploitation. International trade banned ( CITES I, since 1.7.1975; CMS Appendix I).

• 亚洲:湄公河流域的特有种在那里它已经变得稀有由于过渔。国际间的买卖禁止(引用I；自从1.；7