''Parhomaloptera microstoma'' is a species of balitorid or gastromyzontid loach endemic to the island of Borneo. It is the only member of its genus. It lives in fast-flowing streams and grows to TL.

References

Gastromyzontidae Monotypic fish genera Endemic fauna of Borneo Fauna of Brunei Freshwater fish of Indonesia Freshwater fish of East Malaysia Taxa named by George Albert Boulenger Fish described in 1899 Freshwater fish of Borneo {{Cypriniformes-stub