''Macrobrachium hancocki'' is a species of

freshwater shrimp Freshwater shrimp are any shrimp which live in fresh water. This includes: *Any Caridea (shrimp) which live in fresh water, especially the family Atyidae *Species in the genus ''Macrobrachium'' :*'' Macrobrachium ohione'', the Ohio River shrimp : ...

found from Costa Rica southwards to Colombia and on

Cocos Island Cocos Island ( es, Isla del Coco) is an island in the Pacific Ocean administered by Costa Rica, approximately southwest of the Costa Rican mainland. It constitutes the 11th of the 13 districts of Puntarenas Canton of the Province of Puntarena ...

and the

Galápagos Islands The Galápagos Islands ( es, Islas Galápagos) are an archipelago of volcanic islands in the Eastern Pacific, located around the Equator west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with ...

. The species primarily inhabits swamp waters, small streams and stagnant pools. This species was first described in 1958. ''

References

Palaemonidae Freshwater crustaceans of South America Crustaceans described in 1950 Taxa named by Lipke Holthuis {{Caridea-stub