Melanostomias margaritifer is a species of fish from the family Stomiidae.

The species occur in the Caribbean in the Northwest Atlantic.

Its maximum length is around 8 cm (3.1 in) and its body is quite long.

This pelagic-oceanic fish can be found 70 to 100 m (230 to 330 ft) below the water surface.

This order Stomiiformes (dragonfish and other stomiiforms) related article is a stub.