Blackstripe pencilfish (Nannostomus harrisoni)

General data
- Main name: Blackstripe pencilfish
- Habitat: Freshwater
Classification
- Genus: Nannostomus - Nannostomus
- Family: Lebiasinidae - Pencilfishes
- Order: Characiformes - Characins
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes