Thynnichthys vaillanti
Thynnichthys vaillanti is a species of cyprinid of the genus Thynnichthys. It inhabits rivers in eastern Borneo. Described by Max Carl Wilhelm Weber and Lieven Ferdinand de Beaufort in 1916, it has a maximum length among unsexed males of  and is considered harmless to humans. References

Cyprinid fish of Asia
Fish described in 1916