Psalidopus is a genus of shrimp placed in its own family, Psalidopodidae, and superfamily, Psalidopodoidea.

[2][3] Psalidopus barbouri occurs on continental and insular slopes from Florida, the Bahamas and the Gulf of Mexico, to parts of the Caribbean Sea, perhaps extending as far south as Suriname.

[2] P. barbouri lives on steeply sloping soft muddy bottoms, sometimes mixed with sand, at depths of 400–800 m, where the temperature ranges from 6.1 to 10.0 °C (43.0 to 50.0 °F).

[2] Adults have a carapace length of 13–32 millimetres (0.51–1.26 in), with the total length of the animal, from the tip of the rostrum to the tip of the tail, being up to 5.5 times longer than the carapace.

[2] P. huxleyi lives on steeply sloping bottoms of various compositions and consistencies, at depths of 500–100 m, where the temperature ranges from 5.9 to 13.6 °C (42.6 to 56.5 °F).