description Dwarf Round Ray Overview
Urotrygon nana, known as the dwarf round ray or pygmy round ray, is a small marine ray in the family Urotrygonidae. It is a bottom-dwelling species of the tropical eastern Pacific, recorded from the Gulf of California to Panama, where it occupies soft bottoms including mangrove habitats at depths of about 2 to 15 metres. The species has an oval disc, very small eyes, a slender tail, and one large venomous spine. [STRI species data](https://biogeodb.stri.si.edu/sftep/en/thefishes/species/238)
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