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Fish People Physiology

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The power to use the abilities of fish people. Variation of Cryptic Physiology and Fish Physiology. Not to be confused with Merfolk Physiology.

Also Called

  • Fish People Mimicry
  • Fishman Physiology


User with this ability either is or can transform into a fish people, category of (usually) intelligent, underwater fantasy species. While they're humanoids (one head, two arms, two legs), they don't look human; their bodies, especially the faces, have a fish-like/reptilian appearance. Their disposition/attitude towards others (especially surface folk) and ability to survive on land vary depending on the character and the series.

While Fish People are most often a pre-existing race, sometimes they are former humans (or fish) who are the result of mutation. This origin seems especially prevalent in Western Animation.




  • May have complications when transitioning from water to air.
  • Scales and skin may dry when overexposed to the Sun or artificial heat, such as fires or heaters.
  • May be vulnerable to certain diseases.

Known Users

See Also: Fish People.

  • The Gill-Man (Creature from the Black Lagoon)
  • The Gill-Man (Monster Squad)
  • The Missing Link (Monsters vs. Aliens)
  • Uncle Gilbert (The Munsters)
  • Gillfolk (Hotel Transylvania)
  • Deep Ones (The Shadow Over Innsmouth)
  • Hamlet Fishmen (Bloodborne)
  • Fishmen (One Piece)
    • Arlong
  • Sea Devils (Doctor Who)
  • The Hath (Doctor Who)
  • Undersea Gal (Tim Burton's The Nightmare before Christmas)
  • Aquaphibians (Stingray)
    • King Titan
    • Surface Agent X20
  • Mon Calamari (Star Wars)
    • Admiral Gial Ackbar
  • Some of Jones's Crew (Pirates of The Carribean)
  • Abe Sapien (Hellboy)
  • Nereid (Monster Girl Encyclopedia)
  • Sahuagin (Monster Girl Encyclopedia)

Known Objects

  • Gills of Hamachi (Xiaolin Showdown)


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