semoni, Prototroctes Weber [M.] 1895:274 [Fische von Ambon, Java, Thursday Island v. 5; ref. 4607] Burnett River, Queensland, Australia. Holotype (unique): ZMA 112579. Type catalog: Nijssen et al. 1982:11-12 [ref. 19236]. •Valid as Retropinna semoni (Weber 1895) -- (McDowall 1979:100 [ref. 7021], Cadwallader & Backhouse 1983:78 [ref. 25473], Paxton et al. 1989:172 [ref. 12442], Gomon et al. 1994:232 [ref. 22532], McDowall 1996:92 [ref. 22909], Pusey et al. 2000:72 [ref. 24466], Unmack 2001:1060 [ref. 25797], Allen et al. 2002:92 [ref. 25930], Hammer & Walker 2004:88 [ref. 28129], Hoese et al. 2006:397 [ref. 29047], Hammer et al. 2012:63 [ref. 32389], Kuiter 2018:22 [ref. 36369]). Current status: Valid as Retropinna semoni (Weber 1895). Retropinnidae: Retropinninae. Distribution: Australia: Queensland and northern New South Wales. Habitat: freshwater, brackish.