Gnathophausia ingens, the giant red mysid, is a species of lophogastrid crustacean with a pantropical distribution.

[2] The adults may reach 35 cm (14 in) long, including the rostrum.

[3] Brooding females live between 900 and 1,400 m (3,000–4,600 ft) in the eastern Pacific Ocean off California.

[4] When they feed, they prey on smaller crustaceans.

This Malacostraca related article is a stub.