Relating to their look, but even so the brilliant crimson colour, the four-eyed worms have 8 huge cirri, which might be like fur or feathers; dorsal cirrophores with dorsal foliose lobe, leaf-like connected to cirri; biramous parapodia, which might be compound, appendages to each and every a part of the frame; and there is not any media antenna, which is unusual, bearing in mind that the majority an identical fashions have a central antenna. As well as, Parahesione apiculata has a novel finger-like trend at the leaf-like construction on its again, which Parahesione pulvinata does now not have.
