calliochromus, Sicyopterus Keith [P.], Allen [G. R.] & Lord [C.] in Keith, Allen, Lord & Hadiaty 2012:314, Figs. 13-15 [Cybium v. 35 (no. 4) (for 2011); ref. 31972] Tirawiwa River, 132 km from mouth, 3°02.792'S, 136°22.858'E, Papua New Guinea, Indonesia. Holotype: MZB 20009. Paratypes: MNHN 2011-0042 (3), WAM P31447-004 (5). •Valid as Sicyopterus calliochromus Keith, Allen & Lord 2012 -- (Keith et al. 2015:244 [ref. 34172], Keith et al. 2015:84 [ref. 34328], Parenti 2021:417 [ref. 38603]). Current status: Valid as Sicyopterus calliochromus Keith, Allen & Lord 2012. Oxudercidae: Sicydiinae. Distribution: Western Pacific: Tirawiwa River (Papua New Guinea, Indonesia). Habitat: freshwater, brackish, marine.