(Maas, 1905)
Umbrella up to 15 mm wide, flattened; manubrium short and broad; mouth with 4 very short crenulated lips; gonads elongate oval, along somewhat more than 1/3 the length of 4 radial canals; 4 long perradial marginal tentacles; 7 rudimentary tentacles in each quadrant; 8 complex statocysts.