Třída: Actinopterygii - paprskoploutví
Řád: Gymnotiformes - nahohřbetí
Čeleď: Apteronotidae - nožovkovití

Typový druh: Apteronotus passan Lacepède, 1800

Reference: Lacepède B. G. E. 1800. Histoire naturelle des poissons. Hist. Nat. Poiss. v. 2. i-lxiv + 1-632. Pls. 1-20.

Přehled druhů

• Apteronotus albifrons (Linnaeus, 1766)
  Nožovka běločelá
  Linnaeus, C. 1766. Systema naturae sive regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Laurentii Salvii, Holmiae. 12th ed. Systema Nat. ed. 12 v. 1 (pt 1): 1-532.
• Apteronotus apurensis Fernández-Yépez, 1968
  Nožovka apureská
  Fernández-Yépez, A. 1968. Contribución al conocimiento de los peces Gymnotiformes. Evencias No. 20: 7 unnum., 5 pls.
• Apteronotus bonapartii (Castelnau, 1855)
  Nožovka ucayalská
  Castelnau, F. L. 1855. Poissons. In: Animaux nouveaux or rares recueillis pendant l'expédition dans les parties centrales de l'Amérique du Sud, de Rio de Janeiro a Lima, et de Lima au Para; exécutée par ordre du gouvernement Français pendant les années 1843 a 1847 ... Part 7, Zoology. Exped. Amer. Sud. v. 2: i-xii + 1-112, Pls. 1-50.
• Apteronotus brasiliensis (Reinhardt, 1852)
  Nožovka brazilská
  Reinhardt, J. T. 1852. Om svömmeblaeren hos Familien Gymnotini. Vidensk. Medd. Naturh. Foren. Kjøbenhavn 1852: 135-149.
• Apteronotus camposdapazi de Santana & Lehmann, 2006
  de Santana, C.D. &  Lehmann A.P. 2006. Apteronotus camposdapazi, a new species of black ghost electric knifefish, from the Rio Tocantins basin, Brazil (Gymnotiformes: Apteronotidae). Ichthyological Exploration of Freshwaters, 17 (3): 261–266.
• Apteronotus caudimaculosus Santana, 2003
  Nožovka ocasoskvrnná
  Santana, C. L. de. 2003. Apteronotus caudimaculosus n. sp. (Gymnotiformes: Apteronotidae), a sexually dimorphic black ghost knifefish from the Pantanal, western Brazil, with a note on the monophyly of the A. albifrons species complex. Zootaxa No. 252: 1-11.
• Apteronotus cuchillejo (Schultz, 1949)
  Nožovka motatánská
  Schultz, L. P. 1949. A further contribution to the ichthyology of Venezuela. Proc. U. S. Natl. Mus. v. 99 (no. 3235): 1-211, Pls. 1-3.
• Apteronotus cuchillo Schultz, 1949
  Nožovka maracaibská
  Schultz, L. P. 1949. A further contribution to the ichthyology of Venezuela. Proc. U. S. Natl. Mus. v. 99 (no. 3235): 1-211, Pls. 1-3.
• Apteronotus ellisi (Alonso de Arámburu, 1957)
  Nožovka argentinská
  Alonso de Arámburu, A. S. 1957. Porotergus ellisi una nueva especie de gimnotido de la Argentina (Pisces: Gymnotoidei). Notas Mus. La Plata v. 19 (no. 177): 153-159.
• Apteronotus eschmeyeri de Santana, Maldonado-Ocampo, Severi & Mendes, 2004
  Nožovka Eschmeyerova
  Santana, C. D. de, J. A. Maldonado-Ocampo, W. Severi & G. N. Mendes. 2004. Apteronotus eschmeyeri, a new species of ghost knifefish from the Magdalena Basin, Colombia (Gymnotiformes: Apteronotidae). Zootaxa No. 410: 1-11.
• Apteronotus galvisi de Santana, Maldonado-Ocampo & Crampton, 2007
  de Santana, C.D., Maldonado-Ocampo, J.A. & Crampton, W.G.R. 2007. Apteronotus galvisi, a new species of electric ghost knifefish from the Río Meta basin, Colombia (Gymnotiformes: Apteronotidae). Ichthyological Exploration of Freshwaters, 18 (2): 117–124.
• Apteronotus jurubidae (Fowler, 1944)
  Nožovka kolumbijská
  Fowler, H. W. 1944. Fresh-water fishes from northwestern Colombia. Proc. Acad. Nat. Sci. Phila. v. 96: 227-248.
• Apteronotus leptorhynchus (Ellis, 1912)
  Nožovka tenkonosá
  Eigenmann, C. H. 1912. The freshwater fishes of British Guiana, including a study of the ecological grouping of species, and the relation of the fauna of the plateau to that of the lowlands. Mem. Carnegie Mus. v. 5 (no. 1): i-xxii + 1-578, Pls. 1-103.
• Apteronotus macrolepis (Steindachner, 1881)
  Nožovka velkošupinná
  Steindachner, F. 1881. Beiträge zur Kenntniss der Flussfische Südamerika's (III) und Ichthyologische Beiträge (XI). Anz. Akad. Wiss. Wien v. 18 (no. 11): 97-100.
• Apteronotus macrostomus (Fowler, 1943)
  Nožovka velkotlamá
  Fowler, H. W. 1943. A collection of fresh-water fishes from Colombia, obtained chiefly by Brother Nicéforo Maria. Proc. Acad. Nat. Sci. Phila. v. 95: 223-266.
• Apteronotus magdalenensis (Miles, 1945)
  Nožovka magdalenská
  Miles, C. 1945. Some newly recorded fishes from the Magdalena River system. Caldasia v. 3 (no. 15): 453-464.
• Apteronotus magoi de Santana, Castillo & Taphorn, 2006
  de Santana, C.D., Castillo, O. &  Taphorn, D. 2006. Apteronotus magoi, a new species of ghost knifefish from the Río Orinoco basin, Venezuela (Gymnotiformes: Apteronotidae). Ichthyological Exploration of Freshwaters, 17 (3): 275–280.
• Apteronotus mariae (Eigenmann & Fisher, 1914)
  Nožovka Mariina
  Eigenmann, C. H. & H. G. Fisher. 1914. The Gymnotidae of Trans-Andean Colombia and Ecuador. (Contrib. Zool. Lab. Ind. Univ. No. 141). Ind. Univ. Studies No. 25: 235-237.
• Apteronotus milesi de Santana & Maldonado-Ocampo, 2005
  de Santana, C. D. & J. A. Maldonado-Ocampo. 2005. Apteronotus milesi, new species of ghost knifefish (Gymnotiformes: Apteronotidae) from the Cauca River, with a key to apteronotids from the Magdalena-Cauca basin, Colombia. Ichthyol. Explor. Freshwaters v. 16 (no. 3): 223-230.
• Apteronotus rostratus (Meek & Hildebrand, 1913)
  Nožovka nosatá
  Meek, S. E. & S. F. Hildebrand. 1913. New species of fishes from Panama. Field Mus. Nat. Hist. Publ. Zool. Ser. v. 10 (no. 8): 77-91.
• Apteronotus spurrellii (Regan, 1914)
  Nožovka svatojánská
  Regan, C. T. 1914. Fishes from the Condoto River, Colombia, collected by Dr. H. G. F. Spurrell. Ann. Mag. Nat. Hist. (Ser. 8) v. 14 (no. 79): 31-33.

Statistické údaje

Počet druhů: 21