calliurus, Chirodon Boulenger [G. A.] 1900:3 [Bollettino dei Musei di Zoologia ed Anatomia Comparata della R. Università di Torino v. 15 (no. 370); ref. 14722] Corandasiñho [Carandasinho, Mato Grosso], Brazil; San Lorenzo, Jujuy Province, Argentina. Syntypes: BMNH 1900.4.14.78-82 (5); MSNG 37719 (2); MZUT 1368 (1); NMW 60345 (5), 77966 (2) Type catalog: Tortonese 1961:183 [ref. 10343]. Original genus should have been Cheirodon. •Valid as Odontostilbe calliura (Boulenger 1900) -- (Britski et al. 1999:48 [ref. 24147]). •Valid as Serrapinnus calliurus (Boulenger 1900) -- (Malabarba 1998:215 [ref. 23844], Gelain et al. 1999:71 [ref. 24205], Malabarba & Weitzman 1999:413 [ref. 24417], Malabarba in Reis et al. 2003:219 [ref. 27061], López et al. 2003:30 [ref. 27366], Casciotta et al. 2003:113 [ref. 28130], Menni 2004:78 [ref. 28131] as Serrapinus, Miquelarena et al. 2008:71 [ref. 29829], Mirande 2010:533 [ref. 31006], Jerep & Malabarba 2014:307 [ref. 33376], Malabarba & Jerep 2014:58 [ref. 33440], Litz & Koerber 2014:12 [ref. 33622], Sarmiento et al. 2014:185 [ref. 35004], Mirande & Koerber 2015:19 [ref. 35117], Jerep et al. 2016:296 [ref. 34362], Bertaco et al. 2016:414 [ref. 34561], Koerber et al. 2017:30 [ref. 35267], Jerep et al. 2018:186 [ref. 35830], Serra et al. 2018:3 [ref. 36023], Reis et al. 2020:458 [ref. 38364], Giora & Wingert 2023:142 [ref. 41026], Loureiro et al. 2023:59 [ref. 40506], Jerep et al. 2024:275 [ref. 40817]). Current status: Valid as Serrapinnus calliurus (Boulenger 1900). Characidae: Cheirodontinae. Distribution: South America: Laguna dos Patos, Paraná-Paraguay and Uruguay River basins (Argentina, Brazil, Bolivia, Paraguay and Uruguay). Habitat: freshwater.