Vanhöffen, 1902
Diameter up to ca. 70 mm; marginal tentacles 24; shape of stomach 4 rounded lobes; the single "hypertrophied" tentacle in exactly same radius as septum between lobes of stomach; with 7-9 small, papillae on upper surface of each marginal lappet, typically one in centre and remainder in two lateral rows; peripheral radial septa divergent centripetally.