Umbrella octopus, also known as Dumbo octopus. Grimpoteuthis is a genus of pelagic umbrella octopus that live in the deep sea. All species of Grimpoteuthis are bathyal creatures, living at extreme depths of 3,000 to 4,000 metres. They have been found worldwide in the waters of New Zealand, Australia, Monterrey Bay, Oregon, Philippines, Martha's Vineyard, Papua New Guinea and Azores. The largest Dumbo octopus ever recorded was 1.8 metres in length and weighed 5.9 kilograms.