* Tetrasepta dischizosepta Suriano, 1975

Type host. Acanthistius brasiliensis (Valenciennes) (Pisces: Serranidae).

Site of infection. Gills.

Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata (38ºS, 57ºW). Holotype: MLP 6425 (cited as MLP P5).

Reference. Suriano (1975b).