fissus, Arius Valenciennes [A.] in Cuvier & Valenciennes 1840:107 [Histoire naturelle des poissons v. 15; ref. 1008] Suriname. Holotype (unique): RMNH 3036. Type information: Boeseman 1972:295 [ref. 19698]. Type catalog: Ferraris 2007:39 [ref. 29155]. For locality information see Boeseman 1972:295 [ref. 19698]. Marceniuk & Ferraris 2003:449 [ref. 27061] act as first reviser in giving precedence to Arius arenatus over A. fissus. •Status uncertain -- (Burgess 1989:168 [ref. 12860]). •Valid as Cathorops fissus (Valenciennes 1840) -- (Le Bail et al. 2000:34 [ref. 24549], Marceniuk & Menezes in Menezes et al. 2003:42 [ref. 27192]). •Synonym of Cathorops spixii (Agassiz 1829) -- (Acero P. 2003:849 [ref. 26998]). •Synonym of Cathorops arenatus (Valenciennes 1840) -- (Marceniuk & Ferraris in Reis et al. 2003:449 [ref. 27061], Marceniuk 2005:97 [ref. 28718], Marceniuk & Menezes 2007:43 [ref. 29031], Ferraris 2007:39 [ref. 29155], Marceniuk 2007:363 [ref. 29509], Marceniuk et al. 2012:91 [ref. 31865]). Current status: Synonym of Cathorops arenatus (Valenciennes 1840). Ariidae: Ariinae. Habitat: brackish, marine.