pleurops, Arius Boulenger [G. A.] 1897:296 [Annals and Magazine of Natural History (Series 6) v. 20 (no. 117) (art. 28); ref. 14626] Magoarisinho, Cape Magoary [Maguarinho], Marajo Island, Brazil. Holotype (unique): BMNH 1897.7.17.7 (plus eggs and embryos in mouth). Type catalog: Ferraris 2007:39 [ref. 29155]. •Valid as Arius pleurops Boulenger 1897 -- (Burgess 1989:169 [ref. 12860]). •Valid as Cathorops pleurops (Boulenger 1897) -- (Acero P. 2003:837 [ref. 26998], Marceniuk & Menezes in Menezes et al. 2003:42 [ref. 27192]). •Synonym of Cathorops agassizii (Eigenmann & Eigenmann 1888) -- (Marceniuk & Ferraris in Reis et al. 2003:449 [ref. 27061], Marceniuk 2005:97 [ref. 28718], Marceniuk & Menezes 2007:40 [ref. 29031] as agassizi, Ferraris 2007:39 [ref. 29155], Marceniuk 2007:369 [ref. 29509], Marceniuk et al. 2012:91 [ref. 31865]). Current status: Synonym of Cathorops agassizii (Eigenmann & Eigenmann 1888). Ariidae: Ariinae. Habitat: freshwater, brackish.