ouwensi, Sicyopterus Weber [M.] 1913:602 [Süsswasserfische aus Niederländisch Süd- und Nord-Neu-Guinea v. 9 (livr. 4); ref. 4603] Humbolt Bay and Mbai River, northern New Guinea. Syntypes: ZMA 112564-65 (1, 2). Type catalog: Nijssen et al. 1982:104 [ref. 19236]. •Valid as Sicyopterus ouwensi Weber 1913 -- (Allen 1991:195 [ref. 21090], Parenti & Maciolek 1993:963 [ref. 21279], Watson et al. 2000:24 [ref. 25138], Larson & Murdy 2001:3603 [ref. 26293]\, Keith et al. 2012:304 [ref. 31972]). •Synonym of Sicyopterus cynocephalus (Valenciennes 1837) -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:86 [ref. 34328]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.