Brachyrhaphis olomina
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Cyprinodontiformes
- family: Poeciliidae
- genus: Brachyrhaphis
- species: Brachyrhaphis olomina
Alajuela- Desamparados
- Orotina
Alajuela- Cañas
- Santa Cruz
- Tilarán
Guanacaste- Colón
Heredia
Costa Rica