augustus, Arius Roberts [T. R.] 1978:36, Figs. 14, 20d [Smithsonian Contributions to Zoology No. 281; ref. 8886] Middle Fly River, Papua New Guinea, 6°32.5'S, 140°55.0'E. Holotype: AMS 27090-001 [ex USNM 217065]. Paratypes: AMS 22460-001 [ex USNM 277066] (1); KFRS F.4681.01 [ex USNM 217066] (1); USNM 217066 (orig. 2, now 1), 217067-68 (1, 2). Type catalog: Ferraris & Vari 1992:6 [ref. 19771], Ferraris 2007:46 [ref. 29155]. If the name augustus is an adjective, then the correct spelling when in Nemapteryx is augusta. •Valid as Arius augustus Roberts 1978 -- (Roberts 1978:36 [ref. 8886], Allen 1991:51 [ref. 21090]). •Valid as Nemapteryx angusta (Roberts 1978) -- (Kailola 2004:139 [ref. 28108] as augustus, Ferraris 2007:46 [ref. 29155] as augusta). •Valid as Neoarius augustus (Roberts 1978) -- (Marceniuk & Menezes 2007:76 [ref. 29031], Allen et al. 2008:52 [ref. 30265]). •Valid as Megalosciades augustus (Roberts 1978) -- (Marceniuk et al. 2023:43 [ref. 40422]). Current status: Valid as Megalosciades augustus (Roberts 1978). Ariidae: Ariinae. Distribution: Fly-Strickland river system, Papua New Guinea. Habitat: freshwater.