umbrus, Gastromyzon Tan [H. H.] 2006:106, Figs. 59-61 [The Borneo Suckers; ref. 28716] Sungai Bantul at Bantul logging camp, draining to Sungai Tulit, 04°8'54"N, 116°48'18"E, Sungai Sebuku basin, Kalimantan Timur, Borneo. Holotype: MZB 16471. Paratypes: CMK 9462 (5). •Valid as Gastromyzon umbrus Tan 2006 -- (Kottelat 2012:64 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon umbrus Tan 2006. Gastromyzontidae. Distribution: Kalabakan and Sebuku river basins, northeastern Borneo, Indonesia. Habitat: freshwater.