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Wednesday, July 12, 2017

Knifefish may refer to several knife-shaped fishes:

  • The Neotropical or weakly electric knifefishes, order Gymnotiformes, containing five families:
    • Family Gymnotidae (banded knifefishes and the electric eel)
    • Family Rhamphichthyidae (sand knifefishes)
    • Family Hypopomidae (bluntnose knifefishes)
    • Family Sternopygidae (glass and rat-tail knifefishes)
    • Family Apteronotidae (ghost knifefishes)
  • The featherbacks, family Notopteridae.
  • The aba, Gymnarchus niloticus
  • Four other unrelated fish species not in any of the above families:
    • Grey knifefish, Bathystethus cultratus.
    • Blue knifefish, Labracoglossa nitida.
    • Collared knifefish or finscale razorfish, Cymolutes torquatus.
    • Jack-knifefish, Equetus lanceolatus.

See also



source : miniwaters.fish

  • Knifefish (robot), an American military robot


source : www.pinterest.com

 
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