This small species is by far the lightest-colored species of Gnathophausia
that I have seen. The light coloration is probably correlated with the shallow depth that the species is found at. The rostrum of this species, as in many Gnathophausia
, is proportionately larger in small individuals, as are the spine on the antenna and the branchiostegal spine. The posterior lobe of the pleuron on the second abdominal segment forms a spine which is longer in mature males than in mature females.