hilgendorfii, Tetrodon Popta [C. M. L.] 1905:185 [Notes from the Leyden Museum v. 25 (no. 4) (art. 15); ref. 3549] Boh River system, Upper Mahakam River, Borneo, Indonesia. Syntypes: RMNH 7658 (6). Original genus should have been Tetraodon. •Synonym of Tetraodon leiurus Bleeker 1850 -- (Dekkers 1975:108 [ref. 7417], Roberts 1989:188 [ref. 6439]). •Valid as Tetraodon hilgendorfii Popta 1905 -- (Kottelat 1998:120 [ref. 23436], Ebert 2001:59 [ref. 25494]). •Valid as Monotrete hilgendorfii (Popta 1905) -- (Tan & Kottelat 2009:62 [ref. 30261]). •Valid as Pao hilgendorfii (Popta 1905) -- (Kottelat 2013:480 [ref. 32989]). Current status: Valid as Pao hilgendorfii (Popta 1905). Tetraodontidae. Distribution: Mahakam River drainage, eastern Borneo, Indonesia. Habitat: freshwater.