Gyrinocheilus

Gyrinocheilus is the single genus in the family Gyrinocheilidae, a family of small Southeast Asian cypriniform fishes that live in fast-flowing freshwater mountain streams. They hold on to fixed objects using a sucker-like mouth, and feed exclusively on algae. There are three species. Members of this single-genus family, along with some other cypriniform fishes, are called algae eaters.
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