Gyrinocheilus pennocki (Fowler, 1937) (spotted algae eater) Gyrinocheilus pustulosus Vaillant, 1902 (Borneo algae eater) Similar fish. As algae eater is a common name for several fish, gyrinocheilids can be easily confused with other species. Most notably is the Siamese algae eater, Crossocheilus siamensis, which belongs to the family Cyprinidae.