Fewkes, 1882
Umbrella up to 27 mm wide, 22 mm high, higher than hemispherical, with rounded apex; manubrium broad, quadrangular, with 4 perradial pouches extending 1/2-2/3 distance towards bell margin; 4 radial canals; mouth with 4 short, slightly crenulated lips; 10-16 sac-like gonads on each side of each manubrial pouch; 20-24 marginal tentacles; between successive tentacles 2 (rarely 1) minute cordyli-like appendages with distal bundle of cnidocysts; cnidome: microbasic euryteles.