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Grimpoteuthis [1] is a genus of pelagic cirrate (finned) octopods known as the dumbo octopi. [2] The name "dumbo" originates from their resemblance to the title character of Disney 's 1941 film Dumbo , having two prominent ear-like fins which extend from the mantle above each eye.
Grimpoteuthidae have a strongly U-, V-, W-shaped internal shell (gladius remnant) that supports muscles for large fins. These fins are proportionally much larger than in the related Opisthoteuthidae, and allow for much stronger swimming using the fins alone (unlike Opisthoteuthids that mostly use the arm webbing for swimming).
Grimpoteuthis umbellata, oral. The species is not well known. The three specimens were taken from different locations; the largest was found off the Azores, and the smaller two were found off Morocco. Of the three specimens, only two were actually members of Grimpoteuthis. Only one of these two is still extant, and it is in poor condition.
Grimpoteuthis discoveryi is a small species of octopus known from more than 50 specimens. [3] It was described in 2003, but specimens have been found as early as 1910. The type species was found at 49°35'N, 14°01'W. [ 4 ]
Grimpoteuthis challengeri is a species of large octopus living in the abyssal zone. Description. The octopus is 370 millimeters long in total, ...
Grimpoteuthis megaptera is a species of octopus known from five specimens, collected by Addison Emery Verrill. [1] Between two and three of these specimens may belong to different species. [ 3 ]
The internal shell (fin support) is roughly U-shaped, its ends flattened with small spikes. The octopus lacks a radula and posterior salivary gland (features found in some Grimpoteuthis), and has seven to nine gill lamellae on each gill. The mantle and head are gray, posterior edges of the fins are reddish brown the inside of the arm webbing ...
Grimpoteuthis greeni is a dumbo octopus found in deep waters off southern Australia. The species was initially described from three specimens (1 male and 2 female), with a further three specimens identified since then.