Greenstripe pencilfish
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Characiformes
- family: Lebiasinidae
- genus: Nannostomus
- species: Nannostomus marilynae
- São Gabriel da Cachoeira
Amazonas
Brazil- San Fernando de Atabapo
Amazonas
Venezuela