Gyrinocheilus pustulosus (common name: Borneo algae-eater) is a species of cyprinid of the genus Gyrinocheilus.[1] It inhabits the Kapuas, Mahakam and Kayan basins of Indonesian Borneo. It is ten dorsal soft rays and 39 or 40 vertebrae. Unsexed males have a maximum length of 35.5cm (14inches). It was described by George Clapp Vaillant in 1902. It is classified as "data deficient" on the IUCN Red List[2] and considered harmless to humans.