buettikoferi, Acrochordonichthys Popta [C. M. L.] 1904:188 [Notes from the Leyden Museum v. 24 (no. 4) (art. 6) (for Oct. 1902); ref. 3547] Bongan River of Kapuas basin and Bo River of Mahakam basin, Borneo, Indonesia. Syntypes: RMNH 7557 Bongan River (1), 7558 (2) Bo River. Type catalog: Ferraris 2007:13 [ref. 29155]. Originally as büttikoferi. •Questionably a synonym of Acrochordonichthys melanogaster (Bleeker 1854) -- (Roberts 1989:138 [ref. 6439]). •Synonym of Acrochordonichthys rugosus (Bleeker 1846) -- (Ng & Ng 2001:412 [ref. 25771], Ferraris 2007:13 [ref. 29155], Kottelat 2013:218 [ref. 32989]). Current status: Synonym of Acrochordonichthys rugosus (Bleeker 1846). Akysidae: Parakysinae. Habitat: freshwater.