Apex of nectosac of anteriornectophore not constricted, lying close to apex of nectophore. Hydroecium to about half the height of the nectophore; relatively short spindle-shapedsomatocyst. Dorsal ostial tooth obscured, and smaller than laterals. Very broad, divided mouth plate. Dorsal ostial tooth of posteriornectophore similarly obscured. Head piece and neck shield of bract of similar height; spindle-shapedphyllocyst tapering toward its top.
Kingdom Animalia Phylum Cnidaria Class Hydrozoa Subclass Siphonophorae Order Calycophorae Family Diphyidae Subfamily Diphyinae Genus Diphyes Species Diphyes antarctica