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American zoologist G. H. Parker found that the largest suckers on a giant Pacific octopus are about 6.4 cm (2.5 in) and can support 16 kg (35 lb) each. [3] The only other possible contender for the largest species of octopus is the seven-arm octopus ( Haliphron atlanticus ), based on a 61-kilogram (134-pound), incomplete carcass estimated to ...
The member of this genus that best embodies the common name "giant octopus" is Enteroctopus dofleini, which holds the record of being the world's largest octopus based on direct measurements of a 71 kilograms (157 pounds) individual, weighed live. [7] [a] This octopus had a total length near
The giant Pacific octopus (Enteroctopus dofleini) is often cited as the largest known octopus species. Adults usually weigh around 15 kg (33 lb), with an arm span of up to 4.3 m (14 ft). [19] The largest specimen of this species to be scientifically documented was an animal with a live mass of 71 kg (157 lb). [20]
In a book dedicated to the giant Pacific octopus, Cosgrove & McDaniel (2009:72) summarised knowledge on the species's maximum size as follows: The specimen William Dall speared in 1885 at Iliuliuk had the largest radial span of any giant Pacific octopus ever measured. Jock MacLean's 1956 Port Hardy behemoth was the biggest ever weighed.
This specimen, the largest of this species and of all octopuses, was the first validated record of Haliphron from the South Pacific. It had a mantle length of 0.69 m (2.3 ft), a total length of 2.90 m (9.5 ft), and a weight of 61.0 kg (134.5 lb), although it was incomplete.
While generally much smaller than the giant Architeuthis and Mesonychoteuthis, the largest of the octopuses, the giant Pacific octopus (Enteroctopus dofleini), can grow to be very large. The largest confirmed weight of a giant octopus is 74 kg (163 lb), [ 253 ] with a 7 m (23 ft) arm span (with the tentacles fully extended) and a head-to ...
The largest specimen that is described as Tusoteuthis is later reclassified as Enchoteuthis.. Due to fragmentary nature of holotype specimen, it is hard to determine other specimens that are described as T. longa are actually belonging to that species, and species T. longa itself is likely to be nomen dubium.
Like many octopuses, E. magnificus is a generalist predator. The chief food source for this octopus is the deep-sea portunid crab Bathynectes piperitus.Other major prey items include the Cape hagfish (Myxine capensis), the crab species Pontophilus gracilis, and hermit crabs in the genus Parapagurus.