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

The species are P. maaensis, P. malabaricus, P. manifestus, P. manipulus, P. marcellus, and P. maternus.

More precisely, for this species, the name ‘manipulus’ (Latin), meaning handful, refers to the small number of specimens found.

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

The type-locality and only recorded locality is off Nouméa, New Caledonia[1] where it was considered a rare species, with only 5% of the specimens collected.