The 'Grimpoteuthis' is a genus of pelagic umbrella octopuses known as the dumbo octopuses. The name "dumbo" originates from their resemblance to the title character of Disney's 1941 film "Dumbo", having a prominent ear-like fin that extends from the mantle above each eye.

Species of 'Grimpoteuthis' are assumed to have a worldwide distribution, living in the cold, abyssal depths ranging from 1,000 to 7,000 metres. Specimens have been found off the coast of Oregon, the Philippines, Martha's Vineyard, the Azores, New Zealand, Australia, California, Gulf of Mexico, Papua, and New Guinea. Dumbo octopuses are among the deepest living octopuses known.

Specimens of 'Grimpoteuthis' have been observed to swim by using the movement of the fins. Although it has been suggested that these species are capable of jet-propulsion, this has since been deemed unlikely. The movement of the arms can be used to help the animal move in any direction. The arms permit the animal to crawl along the seafloor, capture prey, lay eggs, explore, etc. Dumbos hover above the seafloor, searching for polychaete worms, pelagic copepods, isopods, amphipods, and other crustaceans for food.

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