Mystus castaneus Ng, 2002

Mystus micracanthus (non-Bleeker): Parenti & Meisner, 2003: 45 (middle Belait). Mystus castaneus Ng, 2002b: 164 (Tutong district: Tasek Merimbun, Belait district: Sungai Melilas). Mystus cf. singaringan: Sulaiman & Shahdan, 2003: 60 (Tasek Merimbun); Sulaiman & Shahdan, 2007: 16 (Tasek

Merimbun).