Graceful pimelodella
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Siluriformes
- family: Heptapteridae
- genus: Pimelodella
- species: Pimelodella gracilis
Rurrenabaque
El Beni
Bolivia
Corumbá
Mato Grosso do Sul- Uruguaiana
Rio Grande do Sul
Brazil
Barbacoas
Nariño
Colombia
Areguá
Central- Villa Hayes
Presidente Hayes
Paraguay
Balsas
Amazonas- Pebas
Loreto- San Lorenzo
Madre de Dios
Peru
Bruzual
Apure
Venezuela