(Keferstein and Ehlers, 1860)
Anterior nectophores with 5 straight ridges. Mouth plate shallow but broad; hydroecium minute. Spindle-shaped somatocyst extending to over half the height of the nectophore. Posterior nectophore with 5 ridges, with a large, asymmetric, notched mouth plate. Bract conical with long spindle-shaped phyllocyst.