Genidens barbus ( Lacépède, 1803)

Pimelodus barbus ^ZBK Lacépède, 1803: 94 and 102. Type locality: Tropical America. No types known.

Pimelodus commersonii ^ZBK Lacépède, 1803: 95 and 103, pl. 3 (fig. 1). No locality. No types known.

Bagrus barbatus ^ZBK Quoy & Gaimard, 1824: 230, pl. 49 (fig.1-2). Type locality: Rio de La Plata , South America. No types known.

Pimelodus versicolor ^ZBK Castelnau, 1855: 35, pl. 16 (fig. 3). Type locality: Rio Araguay, Goiás, Brazil. Syntypes: MNHN 1206.

Tachisurus upsulonophorus ^ZBK Eigenmann & Eigenmann, 1889: 31. Type locality: Rio Grande do Sul, Brazil. Holotype: MCZ 23750.

Silurus marinus Larrañaga, 1923: 376. Type locality: Uruguay. No types known.

Silurus sexdecimradiatus ^ZBK Larrañaga, 1923: 386. Type locality: Uruguay. No types known.

Distribution: Southeast of South America.

Countries: Brazil, Uruguay and Argentina.

Habitat: Predominantly marine but also in brackish waters.

Maximum size: 1.200 mm TL.

Material examined: MZUSP 22780 (1 c&s), Brazil, Rio de Janeiro, Pontal de Atafona; MZUSP 24524 (5 al) (1 c&s), Brazil, São Paulo, Ubatuba, praia Dura, mouth of rio Escuro; MZUSP 51702 (1 es), Brazil, São Paulo, Juréia; MZUSP 51703 (1 es), Brazil, São Paulo, Bertioga, 6 miles from coast; MZUSP 51704 (3 es), Brazil, coast of Sao Paulo state ; MZUSP 28275 (1 al), Brazil, Rio de Janeiro, Itaguai, mouth of rio da Guarda .