(Haeckel, 1879)
Umbrella 40 mm wide, 20 mm high, thick apex; peduncle as long as bell diameter, pyramidal, about 3 times as long as broad; manubrium fairly small; mouth with large folded lips; gonads wavy; 8 large and 40 small marginal tentacles; 60-80 marginal warts and between them 60-80 spiral cirri; 70-80-statocysts. This species has never been recorded since its description by Haeckel.