digrammus, Poecilobrycon Fowler [H. W.] 1913:525, Fig. 5 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 65; ref. 1389] Rio Madeira about 200 miles east of 62°20'W, Brazil. Holotype: ANSP 39189. Paratypes: ANSP 39190-91 (2), CAS-SU [ex ANSP 39192] (1, missing), USNM 92954 (1). Type catalog: Böhlke 1984:118 [ref. 13621]. •Valid as Nannostomus digrammus (Fowler 1913) -- (Weitzman 1966:22 [ref. 12368], Weitzman & Cobb 1975:9 [ref. 7134], Ortega & Vari 1986:10 [ref. 9708], Weitzman & Weitzman in Reis et al. 2003:244 [ref. 27061], Zarske 2011:296 [ref. 31670], Sarmiento et al. 2014:81, 186 [ref. 35004], DoNascimiento et al. 2017:44 [ref. 35633], Careaga et al. 2020:76 [ref. 37774], Meza-Vargas et al. 2021:15 [ref. 39298], Marinho 2024:386 [ref. 40817]). Current status: Valid as Nannostomus digrammus (Fowler 1913). Lebiasinidae: Pyrrhulininae. Distribution: South America: Amazon River basin (Brazil, Bolivia, Colombia, Guyana and Peru). Habitat: freshwater.