Brandt, 1834
Laodiceidae with unusual cross-shaped manubrium; mouth openings extending along the 4 radial canals transformed for a long distance into open grooves, only most distal parts remaining free and closed; mouth arms slit-like, with strongly folded lips; gonads on diverticula in lateral walls of cruciform, enlarged, mouth-radial canal complex; without cirri; with adaxial ocelli.
Staurophora mertensii