Species that contain: Creatochanes and melanurus [ 2 ] records

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.

transitoria, Creatochanes melanurus var. Steindachner [F.] 1915:49 [35], Pl. 1 (fig. 5) [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse. v. 93; ref. 4244] Rupununi River, Melville Guyana and Rio Branco, Boa Vista, Brazil. Syntypes: (several species) NMW 68532 (4), 68939 (3), 69213 (6, now 5). For type information, see Lucinda & Guedes 2018:231 [ref. 36202]. On p. 35 of separate; also in Steindachner 1917 [ref. 15259]. Species not listed in earlier abstract [ref. 18909]. Combine with a masculine genus, the adjective is transitorius. •Synonym of Bryconops melanurus (Bloch 1794) -- (Koerber et al. 2017:39 [ref. 35267]). •Valid as Bryconops transitorius (Steindachner 1915) -- (Buckup in Reis et al. 2003:120 [ref. 27061], Guedes et al. 2016:[11] [ref. 34534], Silva-Oliveira & Lima 2024:375 [ref. 40817] as transitoria). Current status: Valid as Bryconops transitorius (Steindachner 1915). Iguanodectidae. Distribution: South America: western Amazon basin, Brazil and Guyana Habitat: freshwater.