Aspistor parkeri (Traill, 1832)

Silurus parkeri ^ZBK Traill, 1832: 380, pl. 6 (fig.1). Type locality: Guiana. Holotype: Unknown.

Arius quadriscutis ^ZBK Valenciennes in Cuvier & Valenciennes, 1840b: 111. Type locality: Surinam. Syntypes: MNHN A-9402, B-0596, B-0613; RMNH 3049, 3050.

Distribution: North Eastern South America.

Countries: Guyana, Surinam, French Guiana and Brazil.

Habitat: Marine and brackish waters.

Maximum size: 500 mm TL.

Material examined: FMNH 52850 (5 al, 282-305 mm TL), Guyana, Georgetown market; MZUSP 87697 (1 c&s), Brazil, Sergipe; MZUSP 87698 (1 c&s), Brazil, Sergipe; MZUSP 52840 (1 al), Brazil, Maranhão, SaoLuis, ilha de SaoLuis, rio Curuca .