Systematics of the family Ariidae (Ostariophysi, Siluriformes), with a redefinition of the genera. Author Alexandre P. Marceniuk Author Naércio A. Menezes text Zootaxa 2007 1416 1 126 http://www.zoobank.org/urn:lsid:zoobank.org:pub:FFC65592-D8DB-41BE-AEAC-A41EAB6C6185 journal article z01416p001 Cathorops arenatus (Valenciennes, 1840) Arius arenatus Valenciennes in Cuvier & Valenciennes, 1840b: 106. Type locality: Surinam . Holotype : RMNH 3099 . Arius fissus Valenciennes in Cuvier & Valenciennes, 1840b: 107. Type locality: Surinam . Holotype : RMNH 3036 . Distribution: Northeastern South America. Countries: Venezuela, Guyana, Surinam, French Guiana and Brazil. Habitat: Marine and brackish waters. Maximum size: 250 mm TL. Material examined: USNM 233482 (+40 al) (2 es), Venezuela , mouth of rio Orinoco, 10 naut. mi. upstream from sea buoy ; USNM 286395 (17 al), Suriname , off Surinam .