- Source: Eonemachilus nigromaculatus
Eonemachilus nigromaculatus, also known as Yunnanilus nigromaculatus, is a species of stone loach endemic to the Dianchi Lake basin (which includes the small Yangling Lake) in China, but has apparently been extirpated from Dianchi Lake itself due to heavy pollution. It was formerly placed in the genus Eonemachilus.