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Cyprinidae
Manantial roundnose minnow
Dionda argentosa
Elongated Carp from North American Waters
The Manantial roundnose minnow (Dionda argentosa) is a species of freshwater ray-finned fish in the family Leuciscidae, the shiners, daces and minnows. This species is endemic to the Devils River and San Felipe Creek in Texas, United States. It is threatened by habitat loss.
- Class
- Teleosts
- Family
- Cyprinidae
- Genus
- Dionda
- Maximum length
- 7.6 cm
- Water
- Freshwater
- Body shape
- elongated
- Distribution
- North America: Devils River and San Felipe Creek in Texas, USA.

