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Gonatopsis Okutanii
''Gonatopsis'' is a genus of squid from the Family (biology), family Gonatidae. They are characterised by the loss of their tentacles by the time they have reach the subadult stage. They have Cephalopod arm, arms which have two series of hooks along the midline of the oral surface arms, the radula has five or seven teeth, the Mantle (mollusc), mantle can be muscular or flabby, fins are rhomboid or arrow shaped and they lack photophores. They are found in the North Pacific. Species The following species have been classified as belonging to ''Gonatopsis'': *''Gonatopsis borealis'' Sasaki, 1923 *''Gonatopsis japonicus'' Okiyama, 1969 *''Gonatopsis makko'' Okutani & Nemoto, 1964 *''Gonatopsis octopedatus'' Sasaki, 1920 *''Gonatopsis okutanii'' * Nesis, 1972 The species listed above with an asterisk (*) is a ''taxon inquirendum'' and needs further study to determine if it is a valid species or a synonym. References Gonatidae Cephalopod genera {{squid-stub ... [...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. Academic career 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. It 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. Honors The species ''Sebastodes sasakii'', ''Octopus sasakii'' and ''Sepia sasakii'' are among the taxa that bear names that honour Sasaki. References {{DEFAULTSORT:Sasaki, Madoka Teuthologists Japanese malacologists Japanese taxonomists 20th-century Japanese zoologists 1927 deaths 1883 births Scientists from Hiroshima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photophore
A photophore is a specialized anatomical structure found in a variety of organisms that emits light through the process of boluminescence. This light may be produced endogenously by the organism itself (symbiotic) or generated through a mutualistic relationship with bioluminescent bacteria (non-symbiotic), resulting in light production on a glandular organ of animals. Light organs are most commonly found in marine animals, including many species of fish and cephalopods. The organ can be simple, or as complex as the human eye, equipped with lenses, shutters, color filters, and reflectors; unlike an eye, however, it is optimized to produce light, not absorb it. In the context of developmental biology, light organs form through precise genetic regulation and, in some cases, microbial colonization during specific stages of an organism's life cycle. They play a crucial evolutionary role in enabling species to adapt to low-light or dark environments, particularly in the deep sea. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonatopsis Okutanii
''Gonatopsis'' is a genus of squid from the Family (biology), family Gonatidae. They are characterised by the loss of their tentacles by the time they have reach the subadult stage. They have Cephalopod arm, arms which have two series of hooks along the midline of the oral surface arms, the radula has five or seven teeth, the Mantle (mollusc), mantle can be muscular or flabby, fins are rhomboid or arrow shaped and they lack photophores. They are found in the North Pacific. Species The following species have been classified as belonging to ''Gonatopsis'': *''Gonatopsis borealis'' Sasaki, 1923 *''Gonatopsis japonicus'' Okiyama, 1969 *''Gonatopsis makko'' Okutani & Nemoto, 1964 *''Gonatopsis octopedatus'' Sasaki, 1920 *''Gonatopsis okutanii'' * Nesis, 1972 The species listed above with an asterisk (*) is a ''taxon inquirendum'' and needs further study to determine if it is a valid species or a synonym. References Gonatidae Cephalopod genera {{squid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonatopsis Octopedatus
''Gonatopsis'' is a genus of squid from the family Gonatidae. They are characterised by the loss of their tentacles by the time they have reach the subadult stage. They have arms which have two series of hooks along the midline of the oral surface arms, the radula has five or seven teeth, the mantle can be muscular or flabby, fins are rhomboid or arrow shaped and they lack photophores. They are found in the North Pacific. Species The following species have been classified as belonging to ''Gonatopsis'': *'' Gonatopsis borealis'' Sasaki, 1923 *'' Gonatopsis japonicus'' Okiyama, 1969 *'' Gonatopsis makko'' Okutani & Nemoto, 1964 *'' Gonatopsis octopedatus'' Sasaki, 1920 *''Gonatopsis okutanii'' * Nesis, 1972 The species listed above with an asterisk (*) is a ''taxon inquirendum In biological classification, a ''species inquirenda'' is a species of doubtful identity requiring further investigation. The use of the term in English-language biological literature dates back to at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonatopsis Japonicus
''Gonatopsis japonicus'' is a species of squid from the family Gonatidae. This species is restricted to the western North Pacific in the seas around the Japanese Archipelago. Description ''Gonatopsis japonicus'' is a squid with a slender, muscular mantle. It is relatively large with thin fins and a long, pointed tail. The head is wider than the opening of the mantle. It has robust arms that are armed with heavy hooks. These arms are of different lengths, the longest being just over half the length of the mantle. There are five rows of teeth on the radula. Tentacles are absent in adults. It is a large species that grows to a mantle length of 620mm. Distribution ''Gonatopsis japonicus'' is restricted to the western North Pacific in the Sea of Japan north to the southern Okhotsk Sea and it may also occur off the eastern coast of Japan. It has also been reported from the Kuril Islands east to the central and eastern Bering Sea. Habitat and biology ''Gonatopsis japonicus'' appears ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonatopsis Borealis
''Gonatopsis borealis'', the Boreopacific armhook squid, is a species of squid from the North Pacific Ocean. It is a member of the family Gonatidae. It is an abundant species which is currently caught mainly as a bycatch by fishing boats targeting other quarry. It is an important prey species for many commercially important species of fish, as well as for marine mammals. Description ''Gonatopsis borealis'' is a medium-sized squid. There are three morphs: large bodied, slender bodied and small bodied; these may be separate taxa, but this needs more research. The main characteristics which distinguish this species from closely related species are that it has transverse rows of seven teeth on its radula, rather short blunt-tipped arms which have four rows of suckers near their tips, and a muscular mantle. The muscular arms are 40-45% of the mantle length and some are longer than others, arms III have well-developed aboral keels. Arms I to III have 2 middle series of hooks and 2 mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Of Life Web Project
The Tree of Life Web Project (ToL) is an Internet project providing information about the diversity and phylogeny of life on Earth. This collaborative peer reviewed project began in 1995, and is written by biologists from around the world. The site has not been updated since 2011, however the pages are still accessible. The pages are linked hierarchically, in the form of the branching evolutionary tree of life, organized cladistically. Each page contains information about one particular group of organisms and is organized according to a branched tree-like form, thus showing hypothetical relationships between different groups of organisms. In 2009 the project ran into funding problems from the University of Arizona. Pages and Treehouses submitted took a considerably longer time to be approved as they were being reviewed by a small group of volunteers, and apparently, around 2011, all activities ended. History The idea of this project started in the late 1980s. David Maddison ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Vecchione
Michael Vecchione is an American zoologist currently at the Smithsonian National Museum of Natural History and an Elected Fellow of the American Association for the Advancement of Science since 2001. His highest cited paper is ''Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks'' at 661 times, according to Google Scholar. His current interests are marine biodiversity and cephalopods. He described the Bigfin squid, Magnapinnidae family in 1998 along with Richard E. Young, Richard Young. Education He earned his B.S. at University of Miami in 1972 and his Ph.D. at College of William and Mary in 1979. Publications *Deep, diverse and definitely different: unique attributes of the world's largest ecosystem, 9, Biogeosciences, 2010 *The evolution of coleoid cephalopods and their present biodiversity and ecology, RE Young, M Vecchione, DT Donovan, 20, African Journal of Marine Science 1998 *''Octopus, Squid, and Cuttlefish: A Visual Scienti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard E
Richard is a male given name. It originates, via Old French, from compound of the words descending from Proto-Germanic language">Proto-Germanic ''*rīk-'' 'ruler, leader, king' and ''*hardu-'' 'strong, brave, hardy', and it therefore means 'strong in rule'. Nicknames include " Richie", " Dick", " Dickon", " Dickie", " Rich", " Rick", "Rico (name), Rico", " Ricky", and more. Richard is a common English (the name was introduced into England by the Normans), German and French male name. It's also used in many more languages, particularly Germanic, such as Norwegian, Danish, Swedish, Icelandic, and Dutch, as well as other languages including Irish, Scottish, Welsh and Finnish. Richard is cognate with variants of the name in other European languages, such as the Swedish "Rickard", the Portuguese and Spanish "Ricardo" and the Italian "Riccardo" (see comprehensive variant list below). People named Richard Multiple people with the same name * Richard Andersen (other) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantle (mollusc)
The mantle (also known by the Latin language, Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsum (biology), dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself. In many species of molluscs the Epidermis (skin), epidermis of the mantle secretes calcium carbonate and conchiolin, and creates a mollusc shell, shell. In sea slugs there is a progressive loss of the shell and the mantle becomes the dorsal surface of the animal. The words mantle and pallium both originally meant ‘cloak’ or ‘cape’; see mantle (vesture). This anatomical structure in molluscs often resembles a cloak because in many groups the edges of the mantle, usually referred to as the ''mantle margin'', extend far beyond the main part of the body, forming flaps, double-layered structures which have been adapted for many different uses, including for e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flanders Marine Institute
The Flanders Marine Institute (Dutch: Vlaams Instituut voor de Zee, VLIZ) is a scientific institution dedicated to marine research. Established in 1999 and headquartered in Ostend, Flanders, VLIZ gathers and disseminates ocean knowledge, promotes marine sciences, supports policy-making, fosters innovative solutions, and manages marine data. The institute collaborates closely with scientific institutions, governments, and industry on both national and international levels. Mission and objectives VLIZ's mission is to advance scientific knowledge of marine ecosystems. Its scope covers global seas and estuaries, with a specific focus on the Southern North Sea and the Flemish coast. The institute ensures this knowledge is widely accessible to support the sustainable management of marine resources. VLIZ collects, analyzes, and shares marine data, supporting both scientific research and marine policy. The institute explores innovative pathways, such as developing monitoring systems an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
