Tempasuk basin

Gastromyzon cornusaccus is a small hillstream loach known only from the Sungai Kinarom, a river draining Mount Kinabalu in Sabah, Malaysian Borneo. Before its description it was often misidentified as G. danumensis because of its small adult size and secondary rostrum. Juveniles have thick cream bars and blotches, while adults are uniformly coloured. Like its congeners it needs swift, clean, well-oxygenated water.

Gastromyzon monticola is a hillstream loach from streams draining Mount Kinabalu into Marudu Bay, and the Wariu basin, in Sabah, Malaysian Borneo. It has a spotted back with wavy bars on the flanks and grows to around 85 mm SL. German aquarist Philipp Dickmann attempted to spawn it and published his observations in 2001. Like its congeners it needs swift, clean, well-oxygenated water.

Nematabramis borneensis is a cyprinid endemic to the Malaysian state of Sabah in northern Borneo. It looks particularly similar to N. alestes, sharing a dark lateral stripe, but is told apart immediately by its barbels, which are longer than the head.