longarm river prawn
- kingdom: Animalia
- phylum: Arthropoda
- class: Malacostraca
- order: Decapoda
- family: Palaemonidae
- genus: Macrobrachium
- species: Macrobrachium tenellum
La Libertad
La LibertadPasaquina
La Unión
El SalvadorIztapa
Escuintla
GuatemalaTapachula
Villa Comaltitlán
ChiapasSan Blas
Nayarit
Mexico