nasutus, Astyanax Meek [S. E.] 1907:108 [Field Columbian Museum, Zoölogical Series v. 7 (no. 4); ref. 2959] Lago Managua at Managua, Nicaragua. Holotype: FMNH 5909. Paratypes: CAS 39349 [ex IU 11600] (2); FMNH 5908 (14, 2 c&s), 5910 (1). Type catalog: Ibarra & Stewart 1987:13 [ref. 12367]. Spelled nasatus by Eigenmann, 1917:47 [ref. 1236], •Incertae sedis in Characidae as Deuterodon nasutus (Meek 1907) -- (Lucena & Lucena 2002:119 [ref. 26205]). •Valid as Astyanax nasutus Meek 1907 -- (Villa 1982:102 [ref. 36708], Bussing 1987:70 [ref. 22927], Bussing 1998:81 [ref. 24179], Buckup in Reis et al. 2003:111 [ref. 27061], Bussing 2009:1368 [ref. 30066], Marinho & Birindelli 2013:46 [ref. 32569], Marinho & Ohara 2013:476 [ref. 32713], Schmitter-Soto 2016:130 [ref. 34424], Schmitter-Soto 2017:1392 [ref. 35414], Angulo et al. 2018:[17] [ref. 35879], Angulo et al. 2023:23 [ref. 40676]). Current status: Valid as Astyanax nasutus Meek 1907. Acestrorhamphidae: Acestrorhamphinae. Distribution: Central America: Lake Managua (Nicaragua) endemic. Habitat: freshwater.