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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] |
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] |
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] |
Opisthoteuthis Borealis
''Opisthoteuthis borealis'' is a lesser-known species of octopus found near Greenland and Iceland, especially in the Davis Strait. The species was described from 9 specimens, and is one of the most recent Opisthoteuthis species described. Not much is known about it besides its anatomy and habitat. Description ''Opisthoteuthis borealis'' belongs to the order Cirrata, a subdivision of octopuses which have fleshy fins to assist in swimming, internal shells supporting their bodies, and two threadlike structures called cirri for each sucker. Many cirrate octopuses live in deep water. Octopuses in the species ''Opisthoteuthis borealis'' have mantles up to long. They are medium-sized when compared to closely related species. They have long arms and large eyes. Males of ''O. borealis'' have some enlarged suckers; their purpose is unknown. Females don't have enlarged suckers. This specific kind of sex difference, or sexual dimorphism, is also seen in Opisthoteuthis albatrossi and Opist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madoka Sasaki
was a Japanese zoologist, who is known for his work on the cephalopods of Japan, as well as other groups such as salamanders. Sasaki was Professor of Zoology in the Fishery Department of the College of Agriculture at Tohoku Imperial University, Sapporo, Japan. Sasaki died in 1927 and his major work ''A monograph of the dibranchiate cephalopods of the Japanese and adjacent waters'' was published posthumously in 1929, and was based largely on his studies of the cephalopod collections of the Zoology Department of the "Tokyo University Museum", many of which he collected himself. The species ''Sebastodes sasakii'', ''Octopus sasakii'' and ''Sepia sasakii Sepia may refer to: Biology * ''Sepia'' (genus), a genus of cuttlefish Color * Sepia (color), a reddish-brown color * Sepia tone, a photography technique Music * ''Sepia'', a 2001 album by Coco Mbassi * ''Sepia'' (album) by Yu Takahashi * "S ...'' are among the taxa that bear names that honour Sasaki. References {{DEFAULTS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Opisthoteuthis Agassizii
''Opisthoteuthis agassizii'' is a lesser-known, deep-sea octopus first described in 1883 by Addison E. Verrill. Like all cirrate octopuses, ''O. agassizii'' has fleshy fins to aid in swimming and a small internal shell. Males are up to four times heavier than females, and their suckers are proportionally larger. Both sexes are small. This species is found found in the north-west, and western Atlantic coasts, over depths of 277 to 1,935 meters (historic records from east Atlantic coasts were likely misidentifications with other ''Opisthoteuthis''). Like other opisthoteuthids, they occupy the benthic zone, living on or near the seafloor. These octopuses most likely prey on polychaete worms and crustaceans that live on or just above the seafloor. All females of ''O. agassizii'' become sexually mature when they reach 190 grams (6.702 oz.) and all males are sexually mature once they reach 95 g (3.351 oz.). However, both sexes continue to grow after they reach maturity. While ''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luteuthis Shuishi
''Luteuthis shuishi'' is a species of octopus that lives in the South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phil ..., which is known only from one female specimen collected at a depth of 767 meters. It has short arms and is quite gelatinous. The octopus's total length is about 300 millimeters. References Octopuses Molluscs Molluscs described in 2002 Marine molluscs of Asia Species known from a single specimen {{octopus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luteuthis Dentatus
''Luteuthis dentatus'', also known as Lu's jellyhead, is a medium-sized species of cirrate octopus found near 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-largest island count .... References External links Octopuses Cephalopods of Oceania Endemic fauna of New Zealand Endemic molluscs of New Zealand Molluscs described in 1999 Molluscs of the Pacific Ocean Molluscs of New Zealand {{octopus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Wuelkeri
''Grimpoteuthis wuelkeri'' is a medium-sized octopus characterized from multiple specimens. Description and habitat This octopus is known from the continental slope in the northern Atlantic Ocean at 2,055 meters deep. It is likely demersal. At maximum, its body is 400 millimeters long, and its mantle is 115 millimeters long. Its fin span is around 70% of the octopus' total length. The 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 ... is shaped like a letter "U". Its arms have around 60 to 70 suckers each, and these suckers aren't sexually dimorphic. A web covers about 2/3 of its arms. It has a robust shell, with a thick basal portion, and strong attachments from their fins. References Octopuses Molluscs of the Atlantic Ocean Molluscs described in 1920 {{octo ... [...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 Tuftsi
''Grimpoteuthis tuftsi'' is an octopus known from seven specimens. Description and habitat The specimens were caught by bottom trawling in the Northeastern Pacific Ocean. This octopus was found 3,900 meters deep in the abyssal plain and on the continental slope. It is potentially a demersal species, which means it would live close to the seafloor. The largest of the seven specimens was 475 millimeters in length. Its mantle is 102 millimeters. Each arm has between 63 and 75 suckers; of the suckers, the largest are 2.5 millimeters across. The suckers of ''Grimpoteuthis tuftsi'' aren't different sizes or shapes based on the sex Sex is the trait that determines whether a sexually reproducing animal or plant produces male or female gametes. Male plants and animals produce smaller mobile gametes (spermatozoa, sperm, pollen), while females produce larger ones (ova, oft ... of the specimen. Its shell is shaped somewhat like the letter "W". References Octopuses Molluscs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimpoteuthis Plena
''Grimpoteuthis plena'' is known from only one specimen, which cannot be easily separated from other species of '' Grimpoteuthis'' in the Atlantic Ocean. The specimen was in poor condition. It's similar to ''Grimpoteuthis wuelkeri'', and may be a junior specimen of ''Grimpoteuthis umbellata''. Description and habitat ''G. plena'' was found in the northwestern Atlantic Ocean, at 1,963 meters deep. Like other members of ''Grimpoteuthidae'', it could be demersal. Specifically, the ''Grimpoteuthis Plena'' was found at a latitude of 37º 35’N and a longitude of 71º 18’W in the northwestern Atlantic Ocean along with other species of the same genus being found nearby. The ''G. plena'' was found in the year 1880 by Verrill. The specimen's mantle reached 57 millimeters long, and its total length reached 185 millimeters. Some of its arms are longer than the others. There are between 55 and 60 suckers per arm, the largest of which are 2.5 millimeters in diameter. The octopus' cirri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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