The small-mouth righteye flounder (Nematops microstoma) is a flatfish of the family Pleuronectidae.

It is a demersal fish that lives on saltwater bottoms from depths of 304 metres (997 ft).

Its natural habitat is the tropical waters of the southwest Pacific.

It has a slender body, 2.3 times long as it is wide, with a short pectoral fin.

[1] The diet of the large-scale right-eye flounder consists of small zoobenthos organisms.