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Opisthoteuthis Albatrossi
''Opisthoteuthis albatrossi'' (common name in ja, オオクラゲダコ) is a cirrate octopus originally found off Kinkasan in Japan. This species was described from only four specimens. It is similar to '' Opisthoteuthis californiana;'' the two may be the same species. It is also similar to '' Opisthoteuthis japonica.'' ''O. albatrossi'' lives in the North Pacific, from Japanese waters to the Sea of Okhotsk. It exists at recorded depths of below the surface. Description ''Opisthoteuthis albatrossi'' is a small octopus; its total length is . Each arm has more than 80 suckers, and males have some very enlarged suckers, typical to opisthoteuthids. Like other cirrate octopuses, it has a thick, fleshy web connecting its arms; a small internal shell to support its body; and cirri Giovanni Battista Cirri (1 October 1724 – 11 June 1808) was an Italian cellist and composer in the 18th century. Biography Cirri was born in Forlì in the Emilia-Romagna Region of Italy. He had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirrata
Cirrina or Cirrata is a suborder and one of the two main divisions of octopuses. Cirrate octopuses have a Cirrate shell, small, internal shell and Cephalopod fin, two fins on their head, while their sister suborder Incirrina has neither. The fins of cirrate octopods are associated with a unique cartilage-like shell in a shell sac. In cross-section, the fins have distinct proximal and distal regions, both of which are covered by a thin surface sheath of muscle. The suborder is named for small, cilia-like strands (cirri) on the arms of the octopus, a pair for each sucker. These are thought to play some role in feeding, perhaps by creating currents of water that help bring food closer to the beak. Cirrate octopuses are noteworthy for lacking ink sacs. Phylogeny A molecular phylogeny based on mitochondrial and nuclear DNA marker sequences by Sanchez et al., 2018, shows that the Cirrina is paraphyletic, i.e. it is not a single clade. Instead, a clade containing Opisthoteuthidae and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinkasan
, native_name_link = , image_caption = View from Oshika Peninsula , image_size = , locator_map = , map_custom = , nickname = , location = Pacific Ocean , coordinates = , archipelago = Oshika , total_islands = , major_islands = , area_km2 = 10.28 , length_km = , width_km = , coastline_km = 25 , highest_mount = Kinkasan , elevation_m = 445 , country = Japan , country_admin_divisions_title = Prefecture , country_admin_divisions = Miyagi , country_admin_divisions_title_1 = City , country_admin_divisions_1 = Ishinomaki , population = 6 , population_as_of = 2004 , density_km2 = , ethnic_groups =Japanese , additional_info = , is a small island in Miyagi Prefecture in north-eastern Japan. It lies in the Pacific Ocean approximately one kilometer off the Oshika Peninsula. Geography Kinkasan is in area, and its hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opisthoteuthis Californiana
''Opisthoteuthis californiana'', also known as the flapjack octopus or adorabilis, is a species of umbrella octopus. Description The flapjack octopus usually appear pinkish. They have fins above their eyes, similar to those found on some species of squid. Their maximum size is mantle length. They have eight jointed legs which are affixed together in an umbrella shape. They have a gelatinous body, which spreads into a parachute shape when maneuvering through dimly lit water. They swim by moving their fins, pulsing their webbed arms, pushing water through their funnel for jet propulsion, or all three at once. Distribution ''Opisthoteuthis californiana'' has a distribution in the northern and northeastern Pacific, ranging in the west from off central Honshū (Japan) and the Sea of Okhotsk, its northernmost range is the Bering Sea, and its eastern range is along the western coast of North America as far south as Eureka Bar, California (the type locality, at 350 m depth). The dept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opisthoteuthis Japonica
''Opisthoteuthis japonica'' is a species of octopus that lives in the Pacific Ocean near Japan. Its mantle is about 45 millimeters long, and it's been found at 152 meters deep. ''O. japonica'' lives in the neritic zone. References Octopuses Molluscs described in 1962 {{octopus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Of Okhotsk
The Sea of Okhotsk ( rus, Охо́тское мо́ре, Ohótskoye móre ; ja, オホーツク海, Ohōtsuku-kai) is a marginal sea of the western Pacific Ocean. It is located between Russia's Kamchatka Peninsula on the east, the Kuril Islands on the southeast, Japan's island of Hokkaido on the south, the island of Sakhalin along the west, and a stretch of eastern Siberian coast along the west and north. The northeast corner is the Shelikhov Gulf. The sea is named after the Okhota river, which in turn named after the Even word () meaning "river". Geography The Sea of Okhotsk covers an area of , with a mean depth of and a maximum depth of . It is connected to the Sea of Japan on either side of Sakhalin: on the west through the Sakhalin Gulf and the Gulf of Tartary; on the south through the La Pérouse Strait. In winter, navigation on the Sea of Okhotsk is impeded by ice floes. Ice floes form due to the large amount of freshwater from the Amur River, lowering the salinity o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opisthoteuthis
''Opisthoteuthis'' is a genus of cirrate octopuses, sometimes known as flapjack octopuses, which are found in all the world's oceans. Behavior Like other cirrates, octopuses in Opisthoteuthis are generally small, and many dwell in the deep sea. They have cirri on their arms, internal shells to support their bodies, and muscular fins for steering. Like octopuses of 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 ..., opisthoteuthids have been seen resting or crawling on the seafloor. Species The following 24 species have been placed in ''Opisthoteuthis'': Notes References External links * * {{Taxonbar, from=Q3816282 Octopuses Cephalopod genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirrate Shell
Cirrate octopuses possess a well-developed internal shell that supports their muscular swimming fins. This is in contrast to the more familiar, finless, incirrate octopuses, in which the shell remnant is either present as a pair of stylets or absent altogether. The cirrate shell is quite unlike that of any other living cephalopod group and has its own dedicated set of descriptive terms. It is usually roughly arch- or saddle-shaped and is rather soft, being similar in consistency to cartilage. Each of the eight extant cirrate genera is characterised by a distinct shell morphology: * Cirroteuthidae **'' Cirroteuthis'' — saddle-shaped, with large wings **'' Cirrothauma'' — butterfly-shaped * Opisthoteuthidae **'' Cirroctopus'' — V-shaped, lateral wings tapering to fine points **'' Cryptoteuthis'' — U-shaped, each lateral wing ending in broad lobe with pointed projection **''Grimpoteuthis'' — U-shaped, lateral wings ending bluntly **'' Luteuthis'' — W-shaped **'' Opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirrus (biology)
In biology, a cirrus , plural ''cirri'', , (from the Latin ''cirrus'' meaning a ''curl-like tuft or fringe'') is a long, thin structure in an animal similar to a tentacle but generally lacking the tentacle's strength, flexibility, thickness, and sensitivity. In the sheep liver fluke, for example, the ''cirrus'' is the worm's muscular penis and when not in use is retained within a ''cirrus sac'' or ''pouch'' near the animal's head. The same structure exists in the various ''Taenia'' species of tapeworm. In the clam worms, however, the cirrus is the tentacular process or growth on each of the feet (''parpodia''), either the ''dorsal cirrus'' or the ''ventral cirrus'', and has nothing to do with reproduction. Among the bristleworms, a cirrus is a tentacular growth near the head or notopodium containing sense organs and may be either dorsal, ventral, or lamellar. Among the ribbonworms, the ''caudal cirrus'' is a small thread-like growth at the posterior end of the worm. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopuses
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, cuttlefish, and nautiloids. Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a beaked mouth at the center point of the eight limbs. The soft body can radically alter its shape, enabling octopuses to squeeze through small gaps. They trail their eight appendages behind them as they swim. The siphon is used both for respiration and for locomotion, by expelling a jet of water. Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse of all invertebrates. Octopuses inhabit various regions of the ocean, including coral reefs, pelagic waters, and the seabed; some live in the intertidal zone and others at abyssal depths. Most species grow quickly, mature early, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopods Of Oceania
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishers sometimes call cephalopods "inkfish", referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids. The class now contains two, only distantly related, extant subclasses: Coleoidea, which includes octopuses, squid, and cuttlefish; and Nautiloidea, represented by ''Nautilus'' and ''Allonautilus''. In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains. About 800 living species of cephalopods have been ident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molluscs Of The Pacific Ocean
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropods ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Molluscs Of Asia
Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (other) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * Marines, a naval-based infantry force ** United States Marine Corps ** Royal Marines of the UK ** Brazilian Marine Corps ** Spanish Marine Infantry ** Fusiliers marins (France) ** Indonesian Marine Corps ** Republic of China Marine Corps ** Republic of Korea Marine Corps ** Royal Thai Marine Corps *"Marine" also means "navy" in several languages: ** Austro-Hungarian Navy () ** Belgian Navy (, , ) ** Royal Canadian Navy () *** Provincial Marine (1796–1910), a predecessor to the Royal Canadian Navy ** Navy of the Democratic Republic of the Congo () ** Royal Danish Navy () ** Finnish Navy (, ) ** French Navy () ** Gabonese Navy () ** German Navy () ** Royal Moroccan Navy () ** Royal Netherlands Navy () ** Swedish Navy () Places * Marines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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