(Otto, 1823)
Dorsal and ventral facets of anterior nectophore relatively less regularly pentagonal. Ridges less strongly serrated. Lateral radial canals on nectosac with ascending loop. Posterior nectophore 3 times as long as wide. Two conspicuous basal teeth. Dorsal facet of bract elongate and less regularly pentagonal; apico-lateral facets trapezoidal.