longicephalus, Tachisurus Eigenmann [C. H.] & Eigenmann [R. S.] 1888:143 [Proceedings of the California Academy of Sciences (Series 2) v. 1 (pt 2); ref. 1249] Gulf of Panama, (Pacific) Panama. Holotype (unique): MCZ 4972. Type catalog: Ferraris 2007:39 [ref. 29155]. Original genus should have been Tachysurus. Misspelled longicehpalus on p. 143; longicephalus on p. 118. •Synonym of Arius dasycephalus Günther 1864 -- (Kailola & Bussing in Fischer et al. 1995:867 [ref. 22829]). •Synonym of Cathorops dasycephalus (Günther 1864) -- (Marceniuk & Ferraris in Reis et al. 2003:449 [ref. 27061], Kailola 2004:132 [ref. 28108], Marceniuk & Menezes 2007:43 [ref. 29031], Ferraris 2007:39 [ref. 29155], Marceniuk et al. 2009:274 [ref. 30406]). Current status: Synonym of Cathorops dasycephalus (Günther 1864). Ariidae: Ariinae. Habitat: brackish, marine.