An umbrella has a width of 30-105 cm and is flatter than a spherical. Exumbrella featuring prominent and pointed papillae. The exumbrella, which contains 13–15 rhopalia, has papillae that are long in the apical region, short in the middle, and lacking in the marginal third. Three or four long, tentacle-like marginal lappets and a small, rounded rhopalar lappet are present between neighboring rhopalia. The canal system is composed of 25–33 radial canals. From the base to the marginal end, where they split off and terminated at the points of the rhopalar lappets, rhopalar canals were clearly visible. Interrhopalar canals fuse together to generate extra-circular anastomosing canals. The intra-circular anastomosing canal system is only in connection with the ring and rhopalar canals.