Dorsal and ventral facets of anteriornectophore relatively less regularly pentagonal. Ridges less strongly serrated. Lateralradial canals on nectosac with ascending loop. Posteriornectophore 3 times as long as wide. Two conspicuous basal teeth. Dorsal facet of bractelongate and less regularly pentagonal; apico-lateral facets trapezoidal.
Kingdom Animalia Phylum Cnidaria Class Hydrozoa Subclass Siphonophorae Order Calycophorae Family Abylidae Subfamily Abylopsinae Genus Abylopsis Species Abylopsis tetragona