Crossocheilus

Crossocheilus, also known as the fringe barbs, flying foxes, or "algae eaters", is a genus of fish in the family Cyprinidae.

It is distributed in China, India, Indonesia, Malaysia and Thailand in Asia.

[1] These fish occur in several types of habitat, often fast-flowing rivers with rocky bottoms.

"Revision of the Cyprinid Genus Crossocheilus (Tribe Labeonini) with Description of a New Species" (PDF).

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Two C. oblongus resting on a rock.