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 agassizi (Eigenmann & Eigenmann, 1888) Tachisurus agassizi Eigenmann & Eigenmann, 1888: 145. Type locality: Rio Grande do Sul (probably erroneous) , Brazil . Holotype : MCZ 7670 . Arius pleurops Boulenger, 1897: 296. Type locality: Magoarisinho, Cape Maguarinho , Brazil . Holotype : BMNH 1897.7.17.7 Distribution: Northeastern South America. Countries: Guyana and Brazil. Habitat: Brackish and freshwater. Maximum size: 220 mm TL. Material examined: MZUSP 37232 (17 al) (2 c&s), Brazil , Maceio , Alagoas , lagoa Mundau ; MZUSP 49346 (4 al) (2 es), Brazil , Para , baia de Marajo , ilha do Mosqueiro, Cajueiro ; MZUSP 37231 (7 al) (1 es), Brazil , Alagoas , Maceio , lagoa Mundau ; MZUSP 49358 (6 al) (2 es), Brazil , Sergipe ; MZUSP 37228 (1 es), Brazil , Maranhao , ilha de Sao Luis , estreito de Coqueiro .