Anglerfish

The Anglerfish is one of the minor antagonists in the 2003 Disney/Pixar animated film, Finding Nemo.

Role in the film
In Finding Nemo, the anglerfish entices Marlin and Dory in a dark chasm with her glowing dorsal fin before chasing them, as the two fish try to search for P. Sherman's diving mask. Eventually, she gets caught in the mask around a rock, immobilizing her, but not before attempting one last bite at Marlin and Dory.

After the credits of the film, the anglerfish is eaten by Blenny (who overcomes his fear of sharks and other predatory fish) in a single bite.

Trivia

 * The anglerfish appears to be female, as only females possess the glowing bait that characterizes the species. They are also larger and more dangerous than males, who are 40 times smaller than females.
 * The anglerfish makes a cameo appearance in Up during Carl and Muntz's fight when Muntz strikes one of his exhibits with his sword.