Back Süßwasserkrabbe German Nesalakva krabo Esperanto Cangrejo de agua dulce Spanish Crabe d'eau douce French Édesvízi rákok Hungarian 淡水ガニ Japanese Freshwater crab SIMPLE Sötvattenkrabba Swedish Cua nước ngọt Vietnamese 淡水蟹 Chinese
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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 release thousands of planktonic larvae. This limits the dispersal abilities of freshwater crabs, so they tend to be endemic to small areas. As a result, a large proportion are threatened with extinction.