interruptus, Tetragonopterus Jenyns [L.] 1842:127, Pl. 23 (fig. 4) [The zoology of the voyage of H. M. S. Beagle; ref. 2344] Laguna del Diario, 34°54'S, 55°00'W, in Maldonado, Uruguay. Syntypes: BMNH 1917.7.14.16-17 (2). See Calviño 2007:40 [ref. 29380] for information on the type locality. •Valid as Cheirodon interruptus (Jenyns 1842), subspecies interruptus -- (Pequeño 1989:40 [ref. 14125], Malabarba 1989:133 [ref. 14217], Malabarba 1998:215 [ref. 23844], López et al. 2002:63 [ref. 26808]). •Valid as Cheirodon interruptus (Jenyns 1842) -- (Campos 1982:129 [ref. 8500], Casciotta et al. 1992:10 [ref. 21059], Haro et al. 1996:6 [ref. 25004], Dyer 2000:89 [ref. 26678], Zarske 2001:15 [ref. 25834], Malabarba in Reis et al. 2003:216 [ref. 27061], López et al. 2003:30 [ref. 27366], Casciotta et al. 2003:110 [ref. 28130], Menni 2004:78 [ref. 28131], Mantinian et al. 2008:37 [ref. 34297], Miquelarena et al. 2008:63 [ref. 29829], Mirande 2010:533 [ref. 31006], Litz & Koerber 2014:11 [ref. 33622], Mirande & Koerber 2015:19 [ref. 35117], Bertaco et al. 2016:413 [ref. 34561], Petry et al. 2016:301 [ref. 34966], Nión et al. 2016:28 [ref. 35565], Loureiro et al. 2023:59 [ref. 40506]). Current status: Valid as Cheirodon interruptus (Jenyns 1842). Characidae: Cheirodontinae. Distribution: South America: Argentina, Brazil, Chile (introduced) and Uruguay. Habitat: freshwater.