Třída: Actinopterygii - paprskoploutví
Řád: Siluriformes - sumci
Čeleď: Heptapteridae - anténovkovití

Typový druh: Imparfinis piperatus Eigenmann & Norris, 1900

Reference: Eigenmann C. H. & Norris A. A. 1900. Sobre alguns peixes de S. Paulo, Brazil. Rev. Mus. Paulista v. 4. 349-362.

Přehled druhů

• Imparfinis borodini Mees & Cala, 1989
  
• Imparfinis cochabambae (Fowler, 1940)
  
• Imparfinis guttatus (Pearson, 1924)
  
• Imparfinis hasemani Steindachner, 1915
  Steindachner, F.   1915. Beiträge zur Kenntniss der Flussfische Südamerikas. V. Denkschr. Akad. Wiss. Wien v. 93: 15-106.
• Imparfinis hollandi Haseman, 1911
  Haseman, J. D.   1911. Some new species of fishes from the Rio Iguassú. Ann. Carnegie Mus. v. 7 (nos. 3-4) (19): 374-387, Pls. 50, 58, 73-83.
• Imparfinis lineatus (Bussing, 1970)
  
• Imparfinis longicauda (Boulenger, 1887)
  
• Imparfinis microps Eigenmann & Fisher, 1916
  Eigenmann, C. H.   1916. New and rare fishes from South American rivers. Ann. Carnegie Mus. v. 10 (nos. 1-2): 77-86, Pls. 13-16.
• Imparfinis minutus (Lütken, 1874)
  
• Imparfinis mirini Haseman, 1911
  
• Imparfinis mishky Almirón, Casciotta, Bechara, Ruíz Díaz, Bruno, D’Ambrosio, Solimano & Soneira, 2007
  Almirón, A., Casciotta, J., Bechara, J., Ruíz Díaz, F., Bruno, C., D’Ambrosio, S., Solimano, P. & Soneira, P. 2007. Imparfinis mishky (Siluriformes, Heptapteridae) a new species from the ríos Paraná and Uruguay basins in Argentina. Revue suisse de Zoologie 114 (4): 817-824.
• Imparfinis nemacheir (Eigenmann & Fisher, 1916)
  Eigenmann, C. H.   1916. New and rare fishes from South American rivers. Ann. Carnegie Mus. v. 10 (nos. 1-2): 77-86, Pls. 13-16.
• Imparfinis parvus (Boulenger, 1898)
  Boulenger, G. A.   1898. Viaggio del Dr. Enrico Festa nell' Ecuador e regioni vicine. Poissons de l'Équateur. [Part I]. Boll. Mus. Zool. Anat. Comp. Torino v. 13 (no. 329): 1-13.
• Imparfinis pijpersi (Hoedeman 1961)
  Hoedeman, J. J.   1961. Notes on the ichthyology of Surinam and other Guianas. 8. Additional records of siluriform fishes (2). Bull. Aquatic Biol. v. 2 (no. 23): 129-139.
• Imparfinis piperatus Eigenmann & Norris, 1900
  
• Imparfinis pristos Mees & Cala, 1989
  
• Imparfinis pseudonemacheir Mees & Cala, 1989
  
• Imparfinis spurrellii (Regan, 1913)
  
• Imparfinis stictonotus (Fowler, 1940)
  

Statistické údaje

Počet druhů: 19