Urotrygon microphthalmum Delsman 1941

Long and pointed snout. Disc angular in front and naked. Tail longer, pectorals are angular and caudal fin narrower. Upper surface gray and lower surface whitish (Ref. 6902).

The smalleyed round stingray (Urotrygon microphthalmum) is a species of fish in the family Urotrygonidae. It is found in Brazil, French Guiana, Guyana, Suriname, and Venezuela. Its natural habitats are open seas and shallow seas.