hexadactylus, Silurus Lacepède [B. G. E.] 1803:58, 82 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Dutch collection [no locality]. Holotype: MNHN B-0029 (1). Type catalog: Ferraris 2007:61 [ref. 29155]. •Synonym of Aspredo cotylephorus (Bloch 1794) -- (Mees 1987:186 [ref. 11510]). •Synonym of Platystacus cotylephorus Bloch 1794 -- (Friel in Reis et al. 2003:264 [ref. 27061], Ferraris 2007:61 [ref. 29155]). Current status: Synonym of Platystacus cotylephorus Bloch 1794. Aspredinidae: Aspredininae. Habitat: freshwater, brackish.