rapax, Hydropardus Reinhardt [J. T.] 1851:46 [Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1849 (nos 3-5); ref. 3692] Montevideo, Uruguay. Holotype: ZMUC 183. Type catalog: Nielsen 1974:45 [ref. 9588]. •Synonym of Rhaphiodon vulpinus Spix & Agassiz 1829 -- (Taphorn 1992:439 [ref. 23654], Toledo-Piza 2000:69 [ref. 24268], Toledo-Piza in Reis et al. 2003:235 [ref. 27061], Litz & Koerber 2014:12 [ref. 33622] dated 1849, Mirande & Koerber 2015:20 [ref. 35117], Koerber et al. 2017:31 [ref. 35267], Toledo-Piza 2024:333 [ref. 40817]). Current status: Synonym of Rhaphiodon vulpinus Spix & Agassiz 1829. Cynodontidae. Habitat: freshwater.