ocellifer, Tetragonopterus Steindachner [F.] 1882:179 [Anzeiger der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftlichen Klasse v. 19 (no. 19); ref. 20487] Villa Bella and Cudajas, Amazon River, Brazil [Parintins and Codajás, Amazones, Brazil]. Syntypes: (several) ?MCZ 20969 (5) Lago Cudajas; MSNM 4 [ex MSNM 4659 and ex NMW] (1) Cudajas; NMW 57689 (6); ZSM 5864 (1). Type catalog: Conci & Michelangeli 1974:222 [ref. 21560], Neumann 2011:247 [ref. 31652]. Species later illustrated and described in more detail in Steindachner 1882:32, Pl. 7 (fig. 5) [ref. 14353]. •Valid as Hemigrammus ocellifer (Steindachner 1882) -- (Ortega & Vari 1986:8 [ref. 9708], Géry et al. 1991:59 [ref. 21021], Planquette et al. 1996:278 [ref. 22818], Britski et al. 1999:40 [ref. 24147], Fuller et al. 1999:183 [ref. 25838], Helmdach 2001:13 [ref. 25830], Lasso et al. 2001:95 [ref. 25928], Zarske & Géry 2002:30 [ref. 26553], Lima & Oyakawa in Reis et al. 2003:133 [ref. 27061], Frankel 2002:285 [ref. 30184], Barriga Salazar 2014:107 [ref. 35745], Sarmiento et al. 2014:184 [ref. 35004], Zarske 2015:12 [ref. 33782], Lima et al. 2016:131 [ref. 34590], Melo et al. 2016:132 [ref. 34701], DoNascimiento et al. 2017:49 [ref. 35633], Careaga et al. 2020:75 [ref. 37774] as gr. ocellifer, Meza-Vargas et al. 2021:18 [ref. 39298], Koerber et al. 2022:33 [ref. 39235], Taphorn et al. 2022:15 [ref. 41297], Lima & Marinho 2024:178 [ref. 40817]). •Valid as Holopristis ocellifera (Steindachner 1882) -- (Melo et al. 2024:28 [ref. 41541]). Current status: Valid as Holopristis ocellifera (Steindachner 1882). Acestrorhamphidae: Thayeriinae. Distribution: South America: Amazon River basin (Ecuador, Guyana, Suriname, French Guiana, Peru, Bolivia, Colombia and Brazil). Habitat: freshwater.