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Labidodemas Rigida
''Labidodemas'' is a genus of marine sea cucumbers in the Family (biology), family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species recognises the following species: * ''Labidodemas americanum'' Deichmann, 1938 * ''Labidodemas maccullochi'' (Deichmann, 1958) * ''Labidodemas pertinax'' (Ludwig, 1875) * ''Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas rugosum'' (Ludwig, 1875) * ''Labidodemas semperianum'' Selenka, 1867 * ''Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, ''Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, ''Labidodemas rugosum'' References Holothuriidae Holothuroidea genera {{Holothuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labidodemas Rigida
''Labidodemas'' is a genus of marine sea cucumbers in the Family (biology), family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species recognises the following species: * ''Labidodemas americanum'' Deichmann, 1938 * ''Labidodemas maccullochi'' (Deichmann, 1958) * ''Labidodemas pertinax'' (Ludwig, 1875) * ''Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas rugosum'' (Ludwig, 1875) * ''Labidodemas semperianum'' Selenka, 1867 * ''Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, ''Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, ''Labidodemas rugosum'' References Holothuriidae Holothuroidea genera {{Holothuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emil Selenka
Emil Selenka (27 February, 1842, Braunschweig – 20 February, 1902, Munich) was a German zoologist. He is known for his research on invertebrates and apes and the scientific expeditions he organized to Southeast Asia and South America. Life Selenka was the son of bookbinder Johannes Selenka (1801–1871). He studied natural history at the University of Göttingen, and following a graduate dissertation on Holothuroidea, he remained in Göttingen as an assistant to Wilhelm Moritz Keferstein (1833-1870). His research was in this period mainly on the anatomy, taxonomy and embryology of marine invertebrates, especially organisms from the phylum Echinodermata. In 1868 he became a professor of zoology and comparative anatomy at the University of Leiden, followed by a professorship at the University of Erlangen in 1874. In 1895 he was given an honorary professorship at the University of Munich. He was co-founder of the journal ''Biologisches Zentralblatt''. His l ... [...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] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Cucumber
Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian () species worldwide is about 1,717, with the greatest number being in the Asia-Pacific region. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as '' trepang'', ''namako'', ''bêche-de-mer'', or ''balate''. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter, after which bacteria can continue the decomposition process. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. In some species these can sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuriidae
Holothuriidae is a family of sea cucumbers, a type of echinoderm. Description Members of the family Holothuriidae have thick fleshy bodies and several rows of tube feet which are used for moving around and for adhering to the surface. The body is often covered with blunt projections known as papillae. Many of the members of this family are able to eject a mass of fine sticky threads known as cuvierian tubules to distract predators, or even turn their viscera inside out. For the taxonomic determination, the genera '' Actinopyga'' and '' Bohadschia'' have their spicules exclusively shaped like sticks, and the genera ''Holothuria'' and '' Labidodemas'' never have theirs shaped like tables. '' Actinopyga'' is also equipped with anal teeth (modified podia), and never throw out Cuvieran tubules, just like '' Pearsonothuria''. Members of this family occur throughout the oceans of the world at low to middle latitudes. They often live in coral reefs and nearby sandy habitat types, and a ... [...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] |
Labidodemas Americanum
''Labidodemas'' is a genus of marine sea cucumbers in the family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species recognises the following species: * '' Labidodemas americanum'' Deichmann, 1938 * '' Labidodemas maccullochi'' (Deichmann, 1958) * '' Labidodemas pertinax'' (Ludwig, 1875) * '' Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * '' Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas rugosum'' (Ludwig, 1875) * '' Labidodemas semperianum'' Selenka, 1867 * ''Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, '' Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, ''Labidodemas rugosum ''Labidodemas rugosum'' is a species of sea cucumber in the family Holothuriidae. It is native to the tropical Indo-Pacific region. Description ''Labidodemas rugosum'' has a distinctive white-pink hue. It is covered in long pinkish-white papilla ...'' Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labidodemas Maccullochi
''Labidodemas'' is a genus of marine sea cucumbers in the family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species recognises the following species: * '' Labidodemas americanum'' Deichmann, 1938 * '' Labidodemas maccullochi'' (Deichmann, 1958) * '' Labidodemas pertinax'' (Ludwig, 1875) * '' Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * '' Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas rugosum'' (Ludwig, 1875) * '' Labidodemas semperianum'' Selenka, 1867 * ''Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, '' Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, ''Labidodemas rugosum ''Labidodemas rugosum'' is a species of sea cucumber in the family Holothuriidae. It is native to the tropical Indo-Pacific region. Description ''Labidodemas rugosum'' has a distinctive white-pink hue. It is covered in long pinkish-white papilla ...'' Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labidodemas Pertinax
''Labidodemas'' is a genus of marine sea cucumbers in the family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species recognises the following species: * '' Labidodemas americanum'' Deichmann, 1938 * '' Labidodemas maccullochi'' (Deichmann, 1958) * '' Labidodemas pertinax'' (Ludwig, 1875) * '' Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * '' Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas rugosum'' (Ludwig, 1875) * '' Labidodemas semperianum'' Selenka, 1867 * ''Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, '' Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, ''Labidodemas rugosum ''Labidodemas rugosum'' is a species of sea cucumber in the family Holothuriidae. It is native to the tropical Indo-Pacific region. Description ''Labidodemas rugosum'' has a distinctive white-pink hue. It is covered in long pinkish-white papilla ...'' Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labidodemas Pseudosemperianum
''Labidodemas'' is a genus of marine sea cucumbers in the family Holothuriidae. The genus was erected by Emil Selenka in 1867. Species The World Register of Marine Species recognises the following species: * '' Labidodemas americanum'' Deichmann, 1938 * '' Labidodemas maccullochi'' (Deichmann, 1958) * '' Labidodemas pertinax'' (Ludwig, 1875) * '' Labidodemas pseudosemperianum'' Massin, Samyn & Thandar, 2004 * '' Labidodemas quadripartitum'' Massin, Samyn & Thandar, 2004 * ''Labidodemas rugosum'' (Ludwig, 1875) * '' Labidodemas semperianum'' Selenka, 1867 * ''Labidodemas spineum'' Massin, Samyn & Thandar, 2004 Image:Labidodemas pertinax.jpg, '' Labidodemas pertinax'' Image:Labidodemas rugosum.jpg, ''Labidodemas rugosum ''Labidodemas rugosum'' is a species of sea cucumber in the family Holothuriidae. It is native to the tropical Indo-Pacific region. Description ''Labidodemas rugosum'' has a distinctive white-pink hue. It is covered in long pinkish-white papilla ...'' Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
