zigzag, Pyrrhulina Zarske [A.] & Géry [J.] 1997:12, Figs. 1-2 [Das Aquarium, Monatsmagazin für Vivaristik v. 31 (no. 336); ref. 22797] Creek on road from Campo Verde to Nueva Requena, about 8°30'S, 74°35'W, near Pucallpa, Loreto Dept., Peru. Holotype: MTD F17705. Paratypes: MTD F 10963-66 (4), 10967-69 (3), 16150-54 (5), 17247-54 (8), 17318-33 (16), 17414-25 (13), 17660-63 (4); Géry coll. (8); MHNG (7, 1, 9, 3, 15); ZMA (1); ZMB (5, 5, 1); ZMK 19909-12 (4). Type catalog: Zarske 2003:20 [ref. 27474], Herder et al. 2010:115 [ref. 31087]. •Valid as Pyrrhulina zigzag Zarske & Géry 1997 -- (Weitzman & Weitzman in Reis et al. 2003:249 [ref. 27061], Netto-Ferreira & Marinho 2013:373 [ref. 32716], Barriga Salazar 2014:110 [ref. 35745], Zarske 2016:70 [ref. 35241], Vieira & Netto-Ferreira 2019:7 [ref. 36867], Meza-Vargas et al. 2021:15 [ref. 39298], Netto-Ferreira 2024:392 [ref. 40817]). Current status: Valid as Pyrrhulina zigzag Zarske & Géry 1997. Lebiasinidae: Pyrrhulininae. Distribution: South America: western Amazon River basin (Brazil, Ecuador and Peru). Habitat: freshwater.