australis, Apogon Steindachner [F.] 1867:10 [2] [Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften v. 55 (1. Abth.); ref. 4214] Fitzroy River, Rockhampton, Queensland, Australia. Lectotype: NMW 75802:1 (larger of 2). Paralectotypes: NMW 75802:2 (1). Not types: NMW 35214-15 (12, 1). On p. 2 of separate. Lectotype selected by Gon & Herzig-Straschil 1996:1030 [ref. 22568]. •In family Ambassidae as Denariusa australis (Steindachner 1867) -- (Gon & Herzig-Straschil 1996:1029 [ref. 22568]). •Valid as Denariusa australis (Steindachner 1867) -- (Allen et al. 2006:973 [ref. 29066], Larson et al. 2013:96 [ref. 32988], Pusey et al. 2017:53 [ref. 35250]). Current status: Valid as Denariusa australis (Steindachner 1867). Ambassidae. Distribution: Australia and New Guinea. Habitat: freshwater, brackish.