Théel, 1879
Description:
Prostomium with four antennae, nuchal papillae absent. Small ciliated nuchal organs laterally between prostomium and segment 1. Three pairs of tentacular cirri (1+2), bottle-shaped with long slender tips. Segment 3 without dorsal cirri. Parapodia uniramous.
The following species of this genus occur in the region:
Mystides caeca
Mystides southerni