Pseudorhabdosynochus caballeroi

Pseudorhabdosynochus caballeroi is a diplectanid monogenean parasitic on the gills of fish. It has been described in 1984 by Guy Oliver. The name of the species honours Professor Eduardo Caballero y Caballero, a Mexican parasitologist. 
The species was first described as "Cycloplectanum caballeroi" and transferred to the genus "Pseudorhabdosynochus" by Delane C. Kritsky and Mary Beverley-Burton in 1986.
Description.
"Pseudorhabdosynochus caballeroi" is a small monogenean. The species has the general characteristics of other species of "Pseudorhabdosynochus", with a flat body and a posterior haptor, which is the organ by which the monogenean attaches itself to the gill of is host. The haptor bears two squamodiscs, one ventral and one dorsal.
The sclerotized male copulatory organ, or "quadriloculate organ", has the shape of a bean with four internal chambers, as in other species of "Pseudorhabdosynochus". The vagina includes a sclerotized part, which is a complex structure.
Hosts and localities.
The giant sea bass "Stereolepis gigas" is the type-host of "Pseudorhabdosynochus caballeroi". The type-locality is the Pacific Ocean off Mexico.