''Potamonautes platynotus'' is a species of

freshwater crab Around 1,300 species of freshwater crabs are distributed throughout the tropics and subtropics, divided among eight families. They show direct development and maternal care of a small number of offspring, in contrast to marine crabs, which relea ...

which is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Lake Tanganyika Lake Tanganyika () is an African Great Lake. It is the second-oldest freshwater lake in the world, the second-largest by volume, and the second-deepest, in all cases after Lake Baikal in Siberia. It is the world's longest freshwater lake. ...

, where it is the only freshwater crab outside the genus '' Platythelphusa''. Although primarily aquatic, ''P. platynotus'' is sometimes seen out of water, and can survive for many hours without water.

References

Potamoidea Freshwater crustaceans of Africa Crustaceans described in 1907 Taxonomy articles created by Polbot Fauna of Lake Tanganyika {{crab-stub