Grimpoteuthis spp , are known as the deepest living of all octopus species. They live on the seafloor or hover just slightly above it at depths of depths of to m to ft ,. The similarity of the ear-like fins protruding from the top of the mantle of the Dumbo octopus to the ears of the Disney character, Dumbo, the Flying elephant, led to the common name, dumbo. It has a degenerated radula-type opening that allows it to swallow prey whole instead of having to tear and grind it. This feeding characteristic unique to the genus Grimpoteuthis. Grimpoteuthis spp , known as the deepest living of all octopus species, live on the bottom, or hovering just slightly above the seafloor at depths of depths of to m to ft , with some living as deep as 7, m ft below sea level. Some Dumbos are short, squat and yellow, while others resemble a sea jelly with one giant, brown, walking shoe. They have eight webbed tentacles.
Jump to navigation. Class Cephalopoda squids, octopuses, and relatives , Family Opisthoteuthidae umbrella octopuses. There are at least 15 species of dumbo octopuses, and like all umbrella octopuses, their arms are connected by a web of skin, causing them to resemble umbrellas when their arms are spread apart. Life at these extreme depths requires the ability to live in very cold water and in the complete absence of sunlight.
Cephalopods, Crustaceans, & Other Shellfish
You may be surprised to find that Grimpoteuthis is the name of neither a Muppet nor a Disney character. With features as adorable as its name suggests, the dumbo octopus is small, compared to other octopods, at only an average cm - slightly larger than an adult guinea pig. It propels itself through the water and navigates currents with specialized flippers on top of its head that look just like ears - hence the moniker, Dumbo, after the fictitious elephant that used its ears to fly. As the ocean depths and seafloor remain largely unexplored, dumbo octopuses are a rare sight for researchers, and are largely unaffected by human activity. They forage for their food, eating pelagic invertebrates that swim above the sea floor, like polychaete worms, pelagic copepods, isopods, amphipods, and other crustaceans for food. When they find something to eat, they swallow it whole. Females always carry eggs in different stages of development, and are able to store the sperm packets handed off to them by males for long periods of time.
Grimpoteuthis  is a genus of pelagic umbrella octopuses known as the dumbo octopuses. There are 13 species recognized in the genus. As noted above, many species collected on the Challenger expedition were initially classified in the genera Cirroteuthis and Stauroteuthis. Species of Grimpoteuthis are assumed to have a worldwide distribution, living in the cold, abyssal depths ranging from 1, to 7, metres. Dumbo octopuses are among the deepest living octopuses known. Natural predators include sharks and predatory cephalopods. The Grimpoteuthis does not have an ink sac. Instead they use their chromatophore cells to change colors, which helps them avoid predators.