Sciades emphysetus ^ZBK Müller & Troschel, 1849

(fig. 89)

Bagrus (Sciades) emphysetus ^ZBK Müller & Troschel, 1849: 8. Type locality: Surinam. Holotype: ZMB 2990.

Bagrus albicans ^ZBK Valenciennes in Cuvier & Valenciennes, 1840a: 461, pl. 420. Type locality: Cayenne, French Guiana. Holotype: MNHN A-9350.

Arius physacanthus ^ZBK Vaillant, 1899: 155. Type locality: Mahury River, French Guiana. Holotype: MNHN 1899-0058.

Arius clavispinosus ^ZBK Puyo, 1936: 103, fig. 16A. Type locality: Cayenne River, French Guiana. Holotype: MNHN 1936- 0163.

Arius bonneti ^ZBK Puyo, 1936: 107, fig. 17b. Type locality: Cayenne River, French Guiana. Holotype: MNHN 1936-0162

Arius despaxi ^ZBK Puyo, 1936: 110, fig. 17d. Type locality: Cayenne River, French Guiana. Holotype: MNHN 1936-0161.

Distribution: North and eastern South America.

Countries: Venezuela, Guyana, Surinam, French Guiana and Brazil.

Habitat: Marine and brackish waters.

Maximum size: 510 mm TL.

Material examined: USNM 215204 (2 al, 193-194 mm TL), Brazil, 01° 04’ N 48° 06’ W ; MZUSP 48524 (1 al), Brazil, Pará, baia de Marajo, cabo Maguari ; MZUSP 87699 (1 c&s), Brazil, Maranhão, ilha de SaoLuis, estreito do Coqueiro .