Class Actinopterygii Woodward, 1891 - ray-finned fishes
Subclass Neopterygii Regan, 1923
Infraclass Teleostei Müller, 1845
Supercohort Teleocephala de Pinna, 1996
Clupeocephala
Cohort Otomorpha E.O. Wiley & G.D. Johnson, 2010
Subcohort Ostariophysi Sagemehl, 1885
Section Otophysa (Rosen & Greenwood, 1970)
Superorder Characiphysae (Fink & Fink, 1981)
Order Gymnotiformes Rafinesque, 1810 - American knifefishes
Suborder Sternopygoidei
Family Apteronotidae - ghost knifefishes
Genus Sternarchella Eigenmann, 1905