|
Ikedidae
Ikedidae is a family of spoon worms in the suborder Bonelliida. It is a monotypic family, the only genus being ''Ikeda''. These worms burrow into soft sediment on the seabed. Examination of the original material of '' Ikeda taenoides'' by Teruaki Nishikawa in 2002 showed that the longitudinal muscle layer lay between the circular layer and the oblique layer, as in all other echiurans, throwing the validity of the family Ikedidae into doubt. Nishikawa advocates that the family be regarded as a junior synonym of Echiuridae. Species The World Register of Marine Species recognises the following species in the genus:- *'' Ikeda pirotansis'' ( Menon & DattaGupta, 1962) *''Ikeda taenioides'' (Ikeda Ikeda may refer to: * Ikeda (surname), a Japanese surname * Ikeda (comics), a character in ''Usagi Yojimbo'' * Ikeda clan, a Japanese clan * Ikeda map, chaotic attractor * ''Ikeda'' (annelid) a genus of the family Ikedidae Places * Ikeda, Osaka i ..., 1904) References {{Taxonbar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ikeda Taenioides
''Ikeda taenioides'' is a species of spoon worm in the family Ikedidae. It is native to the northern Pacific Ocean where it is found in the subtidal waters around Japan. Taxonomy This spoon worm was first described by the Japanese zoologist I. Ikeda in 1904 as ''Thalassema taenioides'', the type locality being Misaki, Sagami Bay, in Honshu, Japan. Examination of the musculature of the body wall led to the observation that the longitudinal muscle layer lay outside both the circular layer and the inner oblique layer, and as this was at odds with all other members of the subclass Echiura, it warranted the creation of a new order. However, examination of the original material by Teruaki Nishikawa in 2002, showed that the longitudinal muscle layer was in fact between the circular layer and the oblique layer, as in all other echurians, throwing the taxonomy of the species into doubt. Nishikawa advocates that the family Ikedidae be regarded as a junior synonym of Echiuridae. Descript ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echiurans
The Echiura, or spoon worms, are a small group of marine animals. Once treated as a separate phylum, they are now considered to belong to Annelida. Annelids typically have their bodies divided into segments, but echiurans have secondarily lost their segmentation. The majority of echiurans live in burrows in soft sediment in shallow water, but some live in rock crevices or under boulders, and there are also deep sea forms. More than 230 species have been described. Spoon worms are cylindrical, soft-bodied animals usually possessing a non-retractable proboscis which can be rolled into a scoop-shape to feed. In some species the proboscis is ribbon-like, longer than the trunk and may have a forked tip. Spoon worms vary in size from less than a centimetre in length to more than a metre. Most are deposit feeders, collecting detritus from the sea floor. Fossils of these worms are seldom found and the earliest known fossil specimen is from the Upper Carboniferous ( Pennsylvanian). Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echiura
The Echiura, or spoon worms, are a small group of marine animals. Once treated as a separate phylum, they are now considered to belong to Annelida. Annelids typically have their bodies divided into segments, but echiurans have secondarily lost their segmentation. The majority of echiurans live in burrows in soft sediment in shallow water, but some live in rock crevices or under boulders, and there are also deep sea forms. More than 230 species have been described. Spoon worms are cylindrical, soft-bodied animals usually possessing a non-retractable proboscis which can be rolled into a scoop-shape to feed. In some species the proboscis is ribbon-like, longer than the trunk and may have a forked tip. Spoon worms vary in size from less than a centimetre in length to more than a metre. Most are deposit feeders, collecting detritus from the sea floor. Fossils of these worms are seldom found and the earliest known fossil specimen is from the Upper Carboniferous ( Pennsylvanian). T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spoon Worms
The Echiura, or spoon worms, are a small group of marine animals. Once treated as a separate phylum, they are now considered to belong to Annelida. Annelids typically have their bodies divided into segments, but echiurans have secondarily lost their segmentation. The majority of echiurans live in burrows in soft sediment in shallow water, but some live in rock crevices or under boulders, and there are also deep sea forms. More than 230 species have been described. Spoon worms are cylindrical, soft-bodied animals usually possessing a non-retractable proboscis which can be rolled into a scoop-shape to feed. In some species the proboscis is ribbon-like, longer than the trunk and may have a forked tip. Spoon worms vary in size from less than a centimetre in length to more than a metre. Most are deposit feeders, collecting detritus from the sea floor. Fossils of these worms are seldom found and the earliest known fossil specimen is from the Upper Carboniferous ( Pennsylvanian). Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonelliida
Bonelliida is a suborder of the order Echiuroidea, an order of polychaete worms. Families The following families are classified within the suborder: * Bonelliidae Lacaze-Duthiers, 1858 * Ikedidae Bock Bock is a strong beer in Germany, usually a dark lager. Several substyles exist, including: *Doppelbock (''Double Bock''), a stronger and maltier version *Eisbock (''Ice Bock''), a much stronger version made by partially freezing the beer and ..., 1942 References {{Taxonbar, from=Q10432880 Echiurans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ikeda Pirotansis
Ikeda may refer to: * Ikeda (surname), a Japanese surname * Ikeda (comics), a character in ''Usagi Yojimbo'' * Ikeda clan, a Japanese clan * Ikeda map, chaotic attractor * ''Ikeda'' (annelid) a genus of the family Ikedidae Places * Ikeda, Osaka in Osaka Prefecture, Japan * Ikeda, Fukui, Japan * Ikeda, Gifu, Japan * Ikeda, Hokkaidō, Japan * Ikeda, Kagawa, Shōzu District, Kagawa, Japan * Ikeda, Nagano, Japan * Ikeda, Tokushima, Miyoshi District, Tokushima, Japan * Lake Ikeda, Japan * Ikeda, Gunma, Japan * Ikeda Peace Institute in Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ... * Ikeda Route in Osaka and Hyōgo Prefectures, Japan {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iwaki Ikeda
Iwaki (岩城、磐城) may refer to: Places *Iwaki, Fukushima (いわき市), a city in Japan *Iwaki, Akita (岩城町), a former town in Japan *Iwaki, Aomori (岩木町), a former town in Japan *Iwaki Province (718) (岩城国), an old province of Japan established in 718 and dissolved by 724 *Iwaki Province (1868) (磐城国), an old province of Japan established in 1868 *Iwaki River (岩木川), a river in Aomori Prefecture, Japan *Mount Iwaki (岩木山), a volcano on the Japanese island of Honshū Surname *Iwaki clan: a Japanese clan that ruled the Hamadōri area *Hiroyuki Iwaki (岩城 宏之), a Japanese musician and conductor *Mirai Iwaki, a fictional character in the manga ''Guru Guru Pon-chan'' {{disambiguation, geo, surname Japanese-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echiuridae
Echiuridae is a family of spoon worms in the suborder Echiurida. It is a monotypic family, the only genus being ''Echiurus''. These worms burrow into soft sediment on the seabed. Species The World Register of Marine Species recognises the following species in the genus:- * '' Echiurus abyssalis'' Skorikow, 1906 * '' Echiurus antarcticus'' Spengel, 1912 * ''Echiurus echiurus ''Echiurus echiurus'' is a species of spoon worm in the family Echiuridae. It is found in the North Atlantic Ocean and a subspecies is found in Alaska. It burrows into soft sediment and under boulders and stones in muddy places. Description Th ...'' (Pallas, 1766) * '' Echiurus sitchaensis'' Brandt, 1835 References {{Taxonbar, from=Q2809389 Echiurans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sixten Bock
Sixten, Sigsten or Sighsten is a masculine given name of Swedish origin. The name is derived from the Old Swedish words (victory) and (stone). It is earliest attested in a runestone as sikstain. People named Sixten include: *Sixten Boström (born 1963), Finnish football player and manager *Sixten Ehrling (1918–2005), Swedish conductor *Sixten Franzén (1919–2008), Swedish scientist, inventor of pointcytology * Sighsten Herrgård (1943–1989), Finnish-born Swedish fashion designer *Sixten Isberg (1921–2012), Swedish alpine skier * Sixten Jansson (1913–2006), Swedish canoeist *Sixten Jernberg (1929–2012), Swedish cross-country skier *Sixten Johansson (1910–1991), Swedish ski jumper * Sixten Larsson (1918–1995), Swedish track athlete *Sixten Mohlin (born 1996), Swedish footballer *Sixten Kai Nielsen (born 1978), Danish artist *Sixten Korkman (born 1948), Finnish ecomonist *Sixten Ringbom (1935–1992), Finnish art historian *Sixten Sason (1912–1967), Swedish industri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junior Synonym
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_PC301461.JPG "Click for more on -> Echiura")
