The armless flounder, Neoachiropsetta milfordi, is a southern flounder, the only species in the genus Neoachiropsetta. It is found in Antarctic and sub-Antarctic waters, in depths of between 328 and 3280 feet (100 and 1000 m), and grows to between 11.81 and 23.62 in (30 and 60 cm) in length.
The armless flounder has both eyes on the left side of the head and lies on its right side. It has the typical flattened oval shape of the flounder with the spineless dorsal and anal fins forming a fringe around most of the body. It is more elongated than most other flounders, and the pectoral fins and scales are absent.
The coloring is pale white-brown.