(Lens and van Riemsdijk, 1908)
Anterior nectophore without ostial teeth. Long, filiform somatocyst reaching to two to three fifths the height of the nectophore. Commissural canals may or may not be present. Mouth plate formed by two lateral, non-overlapping lobes, without a central protuberance. Posterior nectophore without ostial teeth with slightly emarginated mouth plate.