Polygenis (Neopolygenis) massoiai Del Ponte, 1967

INMM. Argentina—Buenos Aires: Miramar. Mammalia—Rodentia—Cricetidae— Oxymycterus rufus . Uruguay; Argentina—Buenos Aires: General Pueyrredón, Punta Lara, Miramar, Delta del Paraná. Mammalia—Rodentia— Cricetidae— Akodon azarae, Eligmodontia typus, Oligoryzomys flavescens, Necromys obscurus, Scapteromys aquaticus . Erroneously Beaucournu & Castro (2003) attribute Paraná Delta (from Smit 1987) to Entre Rios Province.