Trichodactylidae is a family of crabs, in its own superfamily, Trichodactyloidea.

They are all freshwater animals from Central and South America,[2] including some offshore islands, such as Ilhabela, São Paulo.

[3] Only one of the 50 species is known from the fossil record, Sylviocarcinus piriformis from the Miocene of Colombia.

[4] The family contains 15 genera in two subfamilies:[5]

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