Species that contain: Nannostomus and unifasciatus [ 2 ] records

ocellatus, Poecilobrycon Eigenmann [C. H.] 1909:45 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1222] Wismar, Guyana. Holotype: FMNH 52975 [ex CM 1179]. Paratypes: (111, CM and IU) BMNH 1911.10.31.384-385 (2); CAS 62377-82 [ex IU 11703-08] (2, 10, 3, 3, 1, 5); FMNH 52781-85 (10, 3, 3, 1, 5), 53552 (1); MCZ 29931 (2); ZMA 100519 (1). Type catalog: Henn 1928:57 [ref. 12305], Nijssen et al. 1982:23 [ref. 19236], Ibarra & Stewart 1987:68 [ref. 12367]. •Synonym of Poecilobrycon unifasciatus (Steindachner 1876) -- (Weitzman 1966:42 [ref. 12368]). •Synonym of Nannostomus unifasciatus Steindachner 1876 -- (Weitzman & Weitzman in Reis et al. 2003:246 [ref. 27061], Marinho 2024:389 [ref. 40817]). Current status: Synonym of Nannostomus unifasciatus Steindachner 1876. Lebiasinidae: Pyrrhulininae. Habitat: freshwater.

unifasciatus, Nannostomus Steindachner [F.] 1876:127 [79], Pl. 9 (fig. 1) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Near mouth of Rio Negro, Brazil. Syntypes: (several) NMW 56514 (4), 58741 (3). On p. 79 of separate. •Valid as Poecilobrycon unifasciatus (Steindachner 1876) -- (Weitzman 1966:42 [ref. 12368]). •Valid as Nannostomus unifasciatus Steindachner 1876 -- (Weitzman & Cobb 1975:33 [ref. 7134], Weitzman & Weitzman in Reis et al. 2003:246 [ref. 27061], Sarmiento et al. 2014:81, 186 [ref. 35004], DoNascimiento et al. 2017:45 [ref. 35633], Careaga et al. 2020:76 [ref. 37774], Guimarães et al. 2020:1 [ref. 37521], Meza-Vargas et al. 2021:15 [ref. 39298], Koerber et al. 2022:27 [ref. 39235] unconfirmed, Marinho 2024:388 [ref. 40817]). Current status: Valid as Nannostomus unifasciatus Steindachner 1876. Lebiasinidae: Pyrrhulininae. Distribution: South America: western Amazon River basin (Bolivia, Brazil, Colombia and Peru); upper Orinoco basin (Venezuela); and Guyana Plateau (Brazil, Guyana and Venezuela); introduced in Trinidad and Tobago. Habitat: freshwater.