* Neomacrovalvitrema argentinensis Suriano, 1975

Type host. Micropogon opercularis (Quoy & Gaimard) (Pisces: Sciaenidae). Site of infection. Gills.

Type locality. Argentina, Buenos Aires Province, coast of Mar del Plata.

Holotype: MLP 6429 (cited as MLP P2).

Remarks. Kohn et al. (1989) consider that the types of N. argentinensis must be reviewed considering that the only differential character "absence of vagina" is not a sufficient character to separate genera.

References. Suriano (1975a), Kohn et al. (1989).