A new Polyclithrum species (Monogenea: Gyrodactylidae) from external surface of Mugil liza (Mugilidae) from Samborombón Bay, Argentina.

MARCOTEGUI P.; MONTES M.; MARTORELLI S

Simposio; 8 International Symposium on Fish Parasites; 2011

Gyrodactylids of genus Polyclithrum Rogers 1967 are parasites of external surfaces of mugilids. At present, this genus comprises a total of five nominal species: Polyclithrum alberti Ernst, Whittington & Jones 2000), a parasite of Mugil cephalus from Queensland, Australia; Polyclithrum boegeri Ernst, Whittington & Jones 2000, found in Mugil liza from Rio de Janeiro, Brazil; Polyclithrum corallense Ernst, Whittington & Jones, 2000 a parasite of Mugil cephalus from Heron Island, Australia; Polyclithrum mugilini Rogers, 1967, a parasite of Mugil cephalus from Georgia, USA, and Black Sea, and Polyclithrum ponticum Gerasev, Dmitrieva & Gaevskaja, 2002, a parasite of Mugil cephalus from Black Sea. As a result of a parasitological survey of specimens of Mugil liza from Samborombón Bay, Argentina, specimens of genus Polyclitrhum were found on finds and body surface. Their detailed study has shown that these specimens differs from all congeneric species mainly by the morphology of male copulatory organ and most of the measurements of haptoral sclerites. Therefore Polyclithrum specimens collected from M. liza from Samborombón Bay represent belong to a previously undescribed species, which is described herein.