dancena, Cyprinus Hamilton [F.] 1822:342, 393 [An account of the fishes found in the river Ganges; ref. 2031] Botanical Garden of Calcutta, Ganges River estuary, India. No types known. Based on an unpublished drawing. Hamilton's original, unpublished illustration reproduced by Britz 2019:Pl. 209 [ref. 37532]. Information on type locality see Britz 2019:46 [ref. 37532]. •Valid as Oryzias dancena (Hamilton 1822) -- (Roberts 1998:214 [ref. 23471], Parenti 1999:2150 [ref. 24784], Parenti 2008:561 [ref. 29902], Magtoon & Termvidchakorn 2009:44 [ref. 30242], Kottelat 2013:101 [ref. 32989], Kottelat 2013:288 [ref. 32989], Suresh et al. 2018:166 [ref. 36495], Roberts et al. 2021:26 [ref. 38273], Parenti 2022:339 [ref. 39716], Sudasinghe et al. 2022:4 [ref. 39438]). Current status: Valid as Oryzias dancena (Hamilton 1822). Adrianichthyidae: Oryziinae. Distribution: Southern Asia: India, Sri Lanka, Bangladesh and Myanmar. Habitat: freshwater, brackish.