(Bigelow, 1918)
Anterior nectophore with triangular dorsal facet. Its lateral margins are deeply bowed and serrated. This facet continues over the top of the nectophore and extends into a short peak into which the nectosac is extended. Posterior nectophore has a relatively large dorsal tooth and numerous small teeth on the comb. The left lateral ridge on the bract joins the apico-lateral ridge, but not the posterior margin.