|
Grimpoteuthis
''Grimpoteuthis'' is a genus of pelagic umbrella octopuses known as the dumbo octopuses. The name "dumbo" originates from their resemblance to the title character of Disney's 1941 film ''Dumbo'', having a prominent ear-like fin which extends from the mantle above each eye. There are 17 species recognized in the genus. Prey include crustaceans, bivalves, worms and copepods. The average life span of various ''Grimpoteuthis'' species is 3 to 5 years. Species and taxonomy As noted above, many species collected on the ''Challenger'' expedition were initially classified in the genera '' Cirroteuthis'' and '' Stauroteuthis.'' Several species formerly classified as ''Grimpoteuthis'' were moved to genera '' Cirroctopus'' and '' Opisthoteuthis''. A new family, Grimpoteuthididae (alternatively spelled Grimpoteuthidae), has been proposed to accommodate ''Grimpoteuthis'' and those of genera ''Enigmatiteuthis'', ''Cryptoteuthis'', and ''Luteuthis''. The persistent confusion and disparit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Discoveryi
''Grimpoteuthis discoveryi'' is a small species of octopus known from more than 50 specimens. 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. Description At maximum, ''Grimpoteuthis discoveryis mantle is 58 millimeters in length, and its body in total reaches 370 millimeters. Its arms are long. ''G. discoveryi'', like other cirrates, has a web covering its arms to some degree; this species' web reaches 2/3 of its arm length. The suckers on its arms number between 56 and 61. The suckers of female specimens are smaller than the suckers of males, and are also differently shaped. The range in mantle size are larger in females (32-58mm) than males (25-52mm). Thposterior salivary glandsand radula are both absent in this species, however, itanterior salivary glandsare present. The species' body is white, and its eyes are dark grey or black when preserved. It's possible that ''G. discoveryi'' is actually two se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umbrella Octopus
Umbrella octopuses (family (biology), family Opisthoteuthidae) are a group of pelagic octopuses. Umbrella octopuses are characterized by a web of skin between the tentacles, causing them to somewhat resemble an opened umbrella when the tentacles are spread. Description Opisthoteuthidae are a group of octopuses characterized by a web of skin in between their tentacles. They have a U or W shaped shell that holds the mantle and connects to their tentacles at the bottom. This structure makes the umbrella octopus resemble an umbrella when they spread their tentacles/web out. The structure of the umbrella octopus has the oral surface below the mantle of the octopuses and the web with their tentacles surround the bottom of the mantle. Their outer skin has a very delicate consistency that results in white spots appearing on their skin when damaged. Opisthoteuthidae fall into the cirrate octopod group, meaning they have fins. Although opisthoteuthidae are categorized as cirrates, unlik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Boylei
''Grimpoteuthis boylei'' is a species of octopus known from only ten individuals. Description The Grimpoteuthis Boylei is a pelagic umbrella octopus, also known as the "dumbo octopus" because it breaks resemblance to the title character of Disney's film Dumbo, 1941. It is large, reaching a total length of 470 millimeters (18.5 inches). Like all cirrates, it has a web over its arms and cirri between its suckers, as well as fins for swimming and a hard shell inside its mantle. ''G. boylei'' has a shell shaped like a saddle. Habitat ''G. boylei'' lives at abyssal depths of the Northeast Atlantic Ocean, more specifically the Porcupine Abyssal Plain and the Porcupine Seabight. It lives near two other members of its genus, '' Grimpoteuthis challengeri'' and ''Grimpoteuthis discoveryi''. The octopus is found between 4,190 and 4,848 meters deep (13,747 to 15,905.5 feet). It is likely that ''G. boylei'' is demersal The demersal zone is the part of the sea or ocean (or deep lake) co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Hippocrepium
''Grimpoteuthis hippocrepium'' is a species of octopus. It is only known from one specimen found in 1904, which was poorly preserved. Some characteristics ''G. hippocrepium'' are unknown. Description and range The type specimen of ''G. hippocrepium'' was found near Colombia in the eastern Pacific Ocean. This octopus has over 50 suckers on its arms, and a shell that is like a horseshoe in shape, while its body is around 80 millimeters long. It lives at about 3,332 meters deep. ''G. hippocrepium'' could be a demersal The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of ... species. It is not used by humans. References {{Taxonbar, from=Q2329570 Molluscs described in 1904 Octopuses Molluscs of the Pacific Ocean Species known from a single specimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Bathynectes
''Grimpoteuthis bathynectes'' is a deepwater species of so-called Dumbo octopus An octopus ( : octopuses or octopodes, see below for variants) is a soft-bodied, eight- limbed mollusc of the order Octopoda (, ). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttle ... first described in 1990. So far only thirteen specimens have been recorded. Description ''Grimpoteuthis bathynectes'' in general form is distinguished from other ''Grimpoteuthis'' species by a suite of characteristics. Each of the dorsal arms have 47–58 suckers, with the suckers slightly larger and more globular in males (more tubular shaped in females). The pairs of cirri (small fingerlike projections between each sucker) start between the 3rd and 4th sucker, and at greatest length the cirri are roughly equal to the sucker diameter. The internal shell (fin support) is roughly 'U'-shaped, its ends being flattened with small spikes. The species also la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Umbellata
''Grimpoteuthis umbellata'', known from three specimens, is the type species of ''Grimpoteuthis''. Description and habitat 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. The largest was found at a depth of 2,235 meters. ''Grimpoteuthis umbellata'' could be the senior synonym of either '' Grimpoteuthis wuelkeri'' or ''Grimpoteuthis discoveryi ''Grimpoteuthis discoveryi'' is a small species of octopus known from more than 50 specimens. 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. Description At maximum, ''Gr ...''. The large specimen is 250 millimeters long, and its mantle is 46 millimeters long. Its first arm is 100 millimeters long. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Innominata
''Grimpoteuthis innominata'' is a species of small, pelagic octopus only known from two specimens. Steve O'Shea discovered it in 1999, and created the genus ''Enigmateuthis'' to contain it. Martin Collins placed the species in the genus ''Grimpoteuthis''. Description and habitat ''Grimpoteuthis innominata'' has been found in Chatham Rise to the east of New Zealand, where it lives 2,000 meters deep in open ocean. Like other members of Grimpoteuthidae, ''G. innominata'' is most likely demersal. This octopus' mantle reaches 43 millimeters long, and its total body is 156 millimeters long. It has an internal shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard ou ... shaped like the letter "U". Its lobelike fins and the shape of its shell help separate it from other species of ''Grimpot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Abyssicola
''Grimpoteuthis abyssicola'' is a species of small deep-sea octopus known from two specimens. The holotype specimen was a female collected on the Lord Howe Rise (central Tasman Sea off New Zealand), between 3154 and 3180 meters depth. A second specimen (a male) was collected on the continental slope of south-eastern Australia between 2821 and 2687 m depth. The female type specimen had a mantle about 75 millimeters long, while its total body reached 305 millimeters long (the male specimen had a longer mantle length at 99 mm, but a shorter total length of 245 mm). ''G. abyssicola's'' internal shell is U-shaped, lacking any lateral prominences/shoulders, and with the ends of shell rounded, this shell shape is distinctive from other ''Grimpoteuthis'' (with the possible exception of ''Grimpoteuthis hippocrepium''). This species can also be distinguished from other members of ''Grimpoteuthis ''Grimpoteuthis'' is a genus of pelagic umbrella octopuses known as the dumbo octopuses. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Challengeri
''Grimpoteuthis challengeri'' is a species of large octopus living in the abyssal zone. Description The octopus is 370 millimeters long in total, while its mantle reaches a length of up to 75 millimeters. It has long arms, and it has a web covering them that reaches 2/3 of the arm length. ''G. challengeri'' has between 63 and 72 suckers on its arms. Its shell is shaped like the letter "U". Like other cirrate octopods, ''G. challengeri'' has fins on either side of its mantle that it uses to swim through the ocean. This octopus's fins are long. It also has a beak, as do other octopuses. ''G. challengeri'' is a red-brown color when preserved, and its fins have a slight purple hue. The octopus's lifespan is unknown. It may lay its eggs on the seafloor, instead of brooding them. Habitat ''G. challengeri'' is known from multiple specimens collected in the Porcupine Abyssal Plain of the Northeast Atlantic Ocean, while another specimen was found in the northwest Atlantic. It lives 4, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Megaptera
''Grimpoteuthis megaptera'' is a species of umbrella octopus known from five specimens, collected by Addison Emery Verrill. Between two and three of these specimens may belong to different species. Description and habitat ''G. megaptera'' lives in the Atlantic Ocean off of Martha's Vineyard Martha's Vineyard, often simply called the Vineyard, is an island in the Northeastern United States, located south of Cape Cod in Dukes County, Massachusetts, known for being a popular, affluent summer colony. Martha's Vineyard includes the s ... in the United States. It was found 4,600 meters deep. Its full length reaches 107 millimeters. Its eyes are small, as are its suckers and cirri. The octopus' arms and web, when viewed orally, are brown. ''G. megaptera'' has yellow suckers and a blue-white mantle and fins. The mantle is spotted with irregular brown-purple markings. References {{Taxonbar, from=Q1895085 Octopuses Molluscs of the Atlantic Ocean Molluscs described in 188 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Meangensis
''Grimpoteuthis meangensis'' is known from either one or two specimens, though the second may be of a completely different species. The first was damaged. Both were found by William Evans Hoyle within one year of each other, and no other animals of the species have been identified since 1886. Description and habitat The type specimen, or original specimen, was found off the south Philippines. It lives about 1,000 meters beneath the water's surface. Like other members of its family, Opisthoteuthidae, ''G. meangensis'' could be demersal. The second specimen was discovered 2,000 meters south of where the first specimen was found. This octopus' mantle reaches 53 millimeters long, and it weighs at least 1,345 grams when wet. Every arm has between 60 and 70 suckers, which are small. Like other cirrates, ''G. meangensis'' has a web covering its arms to some degree; the web of ''G. meangensis'' covers the majority of its arms. The cirri on these arms are short. The fins ''G. meangensi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Angularis
''Grimpoteuthis angularis'' is a species of octopus in the family Opisthoteuthidae. It was first described by Tristan J Verhoeff and Steve O'Shea in 2022, based on a single specimen found in New Zealand. Taxonomy The species was given the name ''angularis'', referring to the octopus' angled shell. Verhoeff & O'Shea proposed that the common name of the species should be angle-shelled dumbo octopus. This species (as well as other ''Grimpoteuthis'') may belong in its own family, the Grimpoteuthididae . Description and habitat The shell of ''Grimpoteuthis angularis'' is V-shaped, notably different to other ''Grimpoteuthis'', the relatively elongate cirri are also distinctive. The holotype was discovered on the Chatham Rise to the east of New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
