(Péron and Lesueur, 1810)
Umbrella 12 mm wide, 12 mm high, barrel-shaped to bell-shaped, with flatly rounded apex and thick walls; manubrium on short, broad gastric peduncle with quadrangular base; oral tentacles divided 7 times; 4 perradial horseshoe-shaped gonads with transverse furrows; 8 marginal bulbs, each with 10-23 tentacles; with dark red ocelli.