Pseudorhabdosynochus maaensis is a diplectanid monogenean parasitic on the gills of the malabar grouper, Epinephelus malabaricus.

In this species, the sclerotised vagina includes a thin primary canal and a distal heavily sclerotised part including primary chamber and secondary chamber.

More precisely, for this species, the name maaensis is derived from the type-locality, Baie Maa, a bay near Nouméa, New Caledonia.

The type-host and only recorded host of P. maaensis is the malabar grouper, Epinephelus malabaricus (Serranidae: Epinephelinae).

The type-locality is Bay Maa near Nouméa, New Caledonia[1] where it was considered a rare species.