FAMILY Acestrorhynchidae Eigenmann, 1912 - cachorros, freshwater , pike-characins, dogtooth characins SUBFAMILY Acestrorhynchinae Eigenmann, 1912 - cachorros, freshwater barracudas, pike-characins Acestrorhynchus Eigenmann & Kennedy, 1903 - cachorros, freshwater barracudas, pike-characins [=Sphyraenocharax, Xiphorhamphus, Xiphorhynchus] Acestrorhynchus abbreviatus (Cope, 1878) - Cope's cochorro Species Acestrorhynchus altus Menezes, 1969 - Arari cochorro Species Menezes, 1969 - Britski's cochorro Species (Bloch, 1794) - freshwater , spotted cochorro [=ferox, pulverulantus, varius] Species Acestrorhynchus falcirostris (Cuvier, 1819) - slender freshwater barracuda Species Acestrorhynchus grandoculis Menezes & Géry, 1983 - Urubaxi cochorro Species Acestrorhynchus heterolepis (Cope, 1878) - Peruvian cochorro Species Acestrorhynchus isalineae Menezes & Géry, 1983 - Madeira cochorro Species Acestrorhynchus lacustris (Lütken, 1875) - Parana cochorro Species Acestrorhynchus maculipinna Menezes & Géry, 1983 - Manaus cochorro Species Acestrorhynchus microlepis (Jardine, 1841) - pike-characin [=apurensis, cachorro, guianensis] Species Acestrorhynchus minimus Menezes, 1969 - Jacare cochorro Species Acestrorhynchus nasutus Eigenmann, 1912 - Guyana cochorro Species Acestrorhynchus pantaneiro Menezes, 1992 - Paraguay cochorro [=vigintisexradiatus] SUBFAMILY Roestinae Lucena & Menezes, 1998 - dogtooth characins GENUS Gilbertolus Eigenmann, in Eigenmann & Ogle, 1907 - dogtooth characins [=Gilbertella] Species Gilbertolus alatus (Steindachner, 1878) - Magdalena dogtooth characin Species Gilbertolus atratoensis Schultz, 1943 - Atrato dogtooth characin Species Gilbertolus maracaiboensis Schultz, 1943 - Maracaibo dogtooth characin GENUS Roestes Günther, 1864 - dogtooth characins [=Lycodon, Xiphocharax] Species Roestes itupiranga Menezes & Lucerna, 1998 - Tocantins dogtooth characin Species Roestes molossus (Kner, 1858) - Madeira dogtooth characin Species Roestes ogilviei (Fowler, 1914) - Ogilvie's dogtooth characin SUBFAMILY Heterocharacinae Géry, 1966 - heterocharacins GENUS Gnathocharax Fowler, 1913 - heterocharacins Species Gnathocharax steindachneri Fowler, 1913 - Steindachner's heterocharacin GENUS Heterocharax Eigenmann, 1912 - heterocharacins Species Heterocharax leptogrammus Toledo-Piza, 2000 - Arirara heterocharacin Species Heterocharax macrolepis Eigenmann, 1912 - Guyanese heterocharacin Species Heterocharax virgulatus Toledo-Piza, 2000 - Amazonian heterocharacin GENUS Hoplocharax Géry, 1966 - heterocharacins Species Hoplocharax goethei Gery, 1966 - Goethe's heterocharacin GENUS Lonchogenys Myers, 1927 - heterocharacins Species Lonchogenys ilisha Myers, 1927 - ilisha heterocharacin