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Grimpoteuthidae
Grimpoteuthidae are a family of bentho-pelagic octopuses, comprising three currently accepted genera. They have extensive arm webbing and relatively large fins allowing for powerful fin swimming. Description 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). Unlike Cirroctopodidae and Opisthoteuthidae, Grimpoteuthids also have the optic nerves heading to each eye as a single bundle (in the other families this occurs as multiple separated nerve bundles). The extensive arm webbing is shared with Opisthoteuthidae and Cirroctopodidae. Taxonomy The following genera and 19 species are currently accepted in this family. The family has consistently been supported in molecular studies as distinct from Opistho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis
''Grimpoteuthis'' is a genus of pelagic Cirrina, cirrate (finned) octopods known as the dumbo octopus. 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 (mollusc), mantle above each eye. There are 17 species recognized in the genus. The Dumbo octopus has a gelatinous body and uses fin propulsion for movement, which also helps it to conserve energy in its extreme deep-sea environment. These unique physical traits distinguish it from other octopuses, which primarily rely on jet propulsion. Prey include crustaceans, bivalves, worms and copepods. The average life span of various ''Grimpoteuthis'' species is 3 to 5 years. Range and habitat Species of ''Grimpoteuthis'' are assumed to have a worldwide distribution, living in the cold, Abyssal plain, abyssal depths ranging from . Specimens have been found off the coasts of Oregon, the Philippines, Marth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
