cyrtogaster, Creatochanes Norman [J. R.] 1926:91 [Annals and Magazine of Natural History (Series 9) v. 18 (no. 103); ref. 15602] Oyapock River, French Guiana. Syntypes: (many) BMNH 1926.3.2.495-514 (20), 1926.3.2.515-524 (10), 2009.9.22.1-16 (16), 2009.9.22.17-40 (24). •In genus Bryconops (Machado-Allison et al. 1993:15 [ref. 22035]). •Synonym of Bryconops melanurus (Bloch 1794) -- (Chernoff et al. 1994:241 [ref. 22044], Koerber et al. 2017:39 [ref. 35267]). •Valid as Bryconops cyrtogaster (Norman 1926) -- (Géry et al. 1991:50 [ref. 21021], Planquette et al. 1996:268 [ref. 22818], Buckup in Reis et al. 2003:119 [ref. 27061], Silva-Oliveira et al. 2018:380 [ref. 36284], Silva-Oliveira et al. 2019:20 [ref. 36769], Silva-Oliveira et al. 2020:861 [ref. 37720], Silva-Oliveira et al. 2021:10 [ref. 38878], Silva-Oliveira & Lima 2024:372 [ref. 40817]). Current status: Valid as Bryconops cyrtogaster (Norman 1926). Iguanodectidae. Distribution: South America: Oyapock River basin, French Guiana and Brazil. Habitat: freshwater.