Třída: Actinopterygii - paprskoploutví
Řád: Siluriformes - sumci
Čeleď: Cetopsidae - velrybovcovití

Typový druh: Pseudocetopsis orientale Vari, Ferraris & Keith, 2003

Reference: Vari, R. P., C. J., Jr. Ferraris & M. C. C. de Pinna 2005. The neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study. Neotropical Ichthyol. v. 3 (no. 2): 127-238.

Přehled druhů

• Cetopsidium ferreirai Vari, Ferraris & de Pinna, 2005
  Vari, R. P., Ferraris, C. J. Jr. & de Pinna, M. C. C. 2005. The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study. Neotropical Ichthyology, 3 (2): 127-238.
• Cetopsidium minutum (Eigenmann, 1912)
  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.
• Cetopsidium morenoi (Fernández-Yépez, 1972)
  Fernández-Yépez, A. 1972. El genero Hemicetopis Blecker, 1863 (Cetopsidae) en Venezuela. Lagena No. 30: 19-21.
• Cetopsidium orientale (Vari, Ferraris & Keith, 2003)
  Vari, R. P., C. J., Jr. Ferraris & P. Keith. 2003. A new Pseudocetopsis species (Siluriformes: Cetopsidae) from Suriname and French Guiana. Proc. Biol. Soc. Wash. v. 116 (no. 3): 692-698.
• Cetopsidium pemon Vari, Ferraris & de Pinna, 2005
  Vari, R. P., Ferraris, C. J. Jr. & de Pinna, M. C. C. 2005. The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study. Neotropical Ichthyology, 3 (2): 127-238.
• Cetopsidium roae Vari, Ferraris & de Pinna, 2005
  Vari, R. P., Ferraris, C. J. Jr. & de Pinna, M. C. C. 2005. The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study. Neotropical Ichthyology, 3 (2): 127-238.

Statistické údaje

Počet druhů: 6