Ligia cursor is a woodlouse in the family Ligiidae.
The antennae are as long as the cephalothorax, which is the head and body of the animal. Its flagellum contains 21 segments, 14 larger and 7 smaller, and each joint shows setae (small bristles).[1]
L. cursor was found on the United States Exploring Expedition of 1838–1842 under the command of Charles Wilkes, on the coast near Valparaíso, Chile.[1]