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Diuronotus Aspetos
''Diuronotus aspetos'' is a species of large sized meiofaunal chaetonotid gastrotrich found in the North Atlantic. With '' Diuronotus rupperti'', it is one of the only two species representing the genus '' Diuronotus''. Distribution and ecology ''Diuronotus aspetos'' has originally been considered as a "High Arctic species" found in low Arctic only in winter since it has originally been found in its type locality (Kigdlugssaitsut, Disko Island, West Greenland) exclusively during winter. However, in 2006, the animal has also been sampled during the summer in the bay of Iterdla (also in Disko Island). Specimens are found in 2 to 5 meters water depth in well-sorted sand with detritus. ''D. aspetos'' appears to be associated to a rich diversity of Gastrotricha like ''Chaetonotus atrox'', ''Halichaetonotus'' sp., ''Mesodasys'' sp., ''Paradasys'' sp., ''Tetranchyroderma ''Tetranchyroderma'' is a genus of gastrotrichs belonging to the family Thaumastodermatidae. The genus has cosmop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reinhardt Kristensen
Reinhardt Møbjerg Kristensen (born 1948) is a Denmark, Danish invertebrate biologist, noted for the discovery of three new phylum, phyla of microscopic animals: the Loricifera in 1983, the Symbion, Cycliophora in 1995, and the Limnognathia, Micrognathozoa in 2000. He is also considered one of the world's leading experts on Tardigrada, tardigrades. His recent field of work revolves mostly around arctic biology. He is also known for documenting ''Dendrogramma'', an invertebrate genus that was later classified as Siphonophorae of the family Rhodaliidae. Loricifera Kristensen collected the first members of the Loricifera phylum in Roscoff, France, in 1970, but did not describe it until 1983.Heiner, I. 2005. Preliminary account of the loriciferan fauna of the Faroe Bank (NE Atlantic). Biofar Proceedings 2005: 213–219. Cycliophora Kristensen and Peter Funch described ''Symbion pandora'', on the mouth-parts of Norwegian lobsters, in 1995; other species were later found on other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetranchyroderma
''Tetranchyroderma'' is a genus of gastrotrichs belonging to the family Thaumastodermatidae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species Species: *'' Tetranchyroderma aapton'' *'' Tetranchyroderma adeleae'' *'' Tetranchyroderma aethesbregmum'' References {{Taxonbar, from=Q4135390 Gastrotricha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musellifer
''Musellifer'' is a genus of gastrotrichs The gastrotrichs (phylum Gastrotricha), commonly referred to as hairybellies or hairybacks, are a group of microscopic (0.06-3.0 mm), worm-like, acoelomate animals, and are widely distributed and abundant in freshwater and marine environmen ... belonging to the family Muselliferidae. The species of this genus are found in Northern America. Species: *'' Musellifer delamarei'' *'' Musellifer profundus'' *'' Musellifer reichardti'' *'' Musellifer sublitoralis'' *'' Musellifer tridentatus'' References {{Taxonbar, from=Q4140474 Gastrotricha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuticle
A cuticle (), or cuticula, is any of a variety of tough but flexible, non-mineral outer coverings of an organism, or parts of an organism, that provide protection. Various types of "cuticle" are non- homologous, differing in their origin, structure, function, and chemical composition. Human anatomy In human anatomy, "cuticle" can refer to several structures, but it is used in general parlance, and even by medical professionals, to refer to the thickened layer of skin surrounding fingernails and toenails (the eponychium), and to refer to the superficial layer of overlapping cells covering the hair shaft ( cuticula pili), consisting of dead cells, that locks the hair into its follicle. It can also be used as a synonym for the epidermis, the outer layer of skin. Cuticle of invertebrates In zoology, the invertebrate cuticle or cuticula is a multi-layered structure outside the epidermis of many invertebrates, notably roundworms and arthropods, in which it forms an exoskeleton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gland
In animals, a gland is a group of cells in an animal's body that synthesizes substances (such as hormones) for release into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland). Structure Development Every gland is formed by an ingrowth from an epithelial surface. This ingrowth may in the beginning possess a tubular structure, but in other instances glands may start as a solid column of cells which subsequently becomes tubulated. As growth proceeds, the column of cells may split or give off offshoots, in which case a compound gland is formed. In many glands, the number of branches is limited, in others (salivary, pancreas) a very large structure is finally formed by repeated growth and sub-division. As a rule, the branches do not unite with one another, but in one instance, the liver, this does occur when a reticulated compound gland is produced. In compound glands the more typical or secretory epithelium is found forming t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermaphrodite
In reproductive biology, a hermaphrodite () is an organism that has both kinds of reproductive organs and can produce both gametes associated with male and female sexes. Many Taxonomy (biology), taxonomic groups of animals (mostly invertebrates) do not have separate sexes. In these groups, hermaphroditism is a normal condition, enabling a form of sexual reproduction in which either partner can act as the female or male. For example, the great majority of tunicata, tunicates, pulmonate molluscs, opisthobranch, earthworms, and slugs are hermaphrodites. Hermaphroditism is also found in some fish species and to a lesser degree in other vertebrates. Most plants are also hermaphrodites. Animal species having different sexes, male and female, are called Gonochorism, gonochoric, which is the opposite of hermaphrodite. There are also species where hermaphrodites exist alongside males (called androdioecy) or alongside females (called gynodioecy), or all three exist in the same species ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cilium
The cilium, plural cilia (), is a membrane-bound organelle found on most types of eukaryotic cell, and certain microorganisms known as ciliates. Cilia are absent in bacteria and archaea. The cilium has the shape of a slender threadlike projection that extends from the surface of the much larger cell body. Eukaryotic flagella found on sperm cells and many protozoans have a similar structure to motile cilia that enables swimming through liquids; they are longer than cilia and have a different undulating motion. There are two major classes of cilia: ''motile'' and ''non-motile'' cilia, each with a subtype, giving four types in all. A cell will typically have one primary cilium or many motile cilia. The structure of the cilium core called the axoneme determines the cilium class. Most motile cilia have a central pair of single microtubules surrounded by nine pairs of double microtubules called a 9+2 axoneme. Most non-motile cilia have a 9+0 axoneme that lacks the central pair o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sea
The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than long and wide, covering . It hosts key north European shipping lanes and is a major fishery. The coast is a popular destination for recreation and tourism in bordering countries, and a rich source of energy resources, including wind and wave power. The North Sea has featured prominently in geopolitical and military affairs, particularly in Northern Europe, from the Middle Ages to the modern era. It was also important globally through the power northern Europeans projected worldwide during much of the Middle Ages and into the modern era. The North Sea was the centre of the Vikings' rise. The Hanseatic League, the Dutch Republic, and the British each sought to gain command of the North Sea and access t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wangerooge
Wangerooge is one of the 32 Frisian Islands in the North Sea located close to the coasts of the Netherlands, Germany and Denmark. It is also a municipality in the district of Friesland in Lower Saxony in Germany. Wangerooge is one of the East Frisian Islands. It is the easternmost and smallest of the inhabited islands in this group (according to some other measurements, Baltrum is the smallest) and the only one that belonged to the historical district of Oldenburg between 1815 and 1947, whereas Borkum, Juist, Norderney, Baltrum, Langeoog and Spiekeroog always belonged to the county of Ostfriesland. As of the census of 2004, the island has 1,055 inhabitants. Especially in summer the island accommodates more than 7,000 visitors a day. Wangerooge is separated from the island of Spiekeroog by a gat known as the Harle. The island is attractive to tourists due to the beaches, various recreation facilities and its relaxed atmosphere. The island's slogan, visible on a sign at the harb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbanella
''Turbanella'' is a genus of gastrotrichs belonging to the family Turbanellidae. The genus has almost cosmopolitan distribution. Species Species: *''Turbanella ambronensis'' *''Turbanella aminensis'' *''Turbanella amphiatlantica'' References {{Taxonbar, from=Q4128879 Gastrotricha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumastoderma
''Thaumastoderma'' is a genus of gastrotrichs belonging to the family Thaumastodermatidae. The species of this genus are found in Europe. Species Species: *''Thaumastoderma antarctica'' *''Thaumastoderma appendiculatum'' *''Thaumastoderma heideri ''Thaumastoderma heideri'' (Greek; Thauma: a wonder, Derma: skin) belongs to the phylum Gastrotricha and the order Macrodasyida, which are worm shaped, mainly marine species of meiofauna. They live in coarser sand and like the rest of the gastrot ...'' References {{Taxonbar, from=Q4139014 Gastrotricha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
