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Thalassianthidae
Thalassianthidae is a family of sea anemones that contains the genera ''Actineria'', ''Cryptodendrum,'' ''Heterodactyla'', and ''Thalassianthus''.World Register of Marine Species. (2016). Thalassianthidae Milne Edwards, 1857. http://www.marinespecies.org/aphia.php?p=taxdetails&id=196167 These sea anemones do not host any varieties of clownfishes, but have been associated with some species of commensal anemone shrimp.Tree of Life. (2000). Thalassianthidae. http://tolweb.org/Thalassianthidae/18326 Research has shown that three species of sea anemones belonging to the family Thalassianthidae - (''Cryptodendrum adhaesivum'', ''Heterodactyla hemprichii'' and ''Thalassianthus aster'') - contain type 2 sodium channel peptide toxins capable of causing lethality to freshwater crabs. In addition, high molecular weight toxins appear to be a new type of toxin in the Thalassianthidae family of sea anemone Sea anemones are a group of predation, predatory marine invertebrates of the order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thalassianthidae
Thalassianthidae is a family of sea anemones that contains the genera ''Actineria'', ''Cryptodendrum,'' ''Heterodactyla'', and ''Thalassianthus''.World Register of Marine Species. (2016). Thalassianthidae Milne Edwards, 1857. http://www.marinespecies.org/aphia.php?p=taxdetails&id=196167 These sea anemones do not host any varieties of clownfishes, but have been associated with some species of commensal anemone shrimp.Tree of Life. (2000). Thalassianthidae. http://tolweb.org/Thalassianthidae/18326 Research has shown that three species of sea anemones belonging to the family Thalassianthidae - (''Cryptodendrum adhaesivum'', ''Heterodactyla hemprichii'' and ''Thalassianthus aster'') - contain type 2 sodium channel peptide toxins capable of causing lethality to freshwater crabs. In addition, high molecular weight toxins appear to be a new type of toxin in the Thalassianthidae family of sea anemone Sea anemones are a group of predation, predatory marine invertebrates of the order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptodendrum
''Cryptodendrum'' is a genus of sea anemones in the family Thalassianthidae. It is monotypic with a single species, ''Cryptodendrum adhaesivum'', also commonly known as the adhesive anemone, pizza anemone, and nap-edged anemone. Like all symbiotic anemones it hosts '' zooxanthellae'', symbiotic algae that help feed their host. Description This anemone grows to a size of 30 centimeters and is distinguished by its colored, beaded and waving curved edge. It has two different forms of tentacles. At the center of the oral disc, it has narrow, short, about 5 mm long, tentacles that are branched with five or more "fingers", like a small, inflated rubber glove. The tentacles are extremely sticky. The tentacles at the edge have a bubble-like thickening of about one millimeter diameter at the end. The two types of tentacles are usually different colors. Similar species The two different tentacles and pizza crust type edge distinguish ''C. adhaesivum'' from superficially similar '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterodactyla
Heterodactyla is a genus of sea anemones of the family Thalassianthidae. The genus was first described in 1834 by Wilhelm Hemprich and Christian Gottfried Ehrenberg Christian Gottfried Ehrenberg (19 April 1795 – 27 June 1876) was a German naturalist, zoologist, comparative anatomist, geologist, and microscopist. Ehrenberg was an evangelist and was considered to be of the most famous and productive scie .... Species The following species are recognized: * '' Heterodactyla hemprichii '' * '' Heterodactyla hypnoides'' References Thalassianthidae Hexacorallia genera Taxa named by Christian Gottfried Ehrenberg Taxa named by Wilhelm Hemprich {{Actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thalassianthus
Thalassianthus is a genus of sea anemones of the family Thalassianthidae Thalassianthidae is a family of sea anemones that contains the genera ''Actineria'', ''Cryptodendrum,'' ''Heterodactyla'', and ''Thalassianthus''.World Register of Marine Species. (2016). Thalassianthidae Milne Edwards, 1857. http://www.marinesp .... Species The following species are recognized: * '' Thalassianthus aster'' Rüppell & Leuckart, 1828 * '' Thalassianthus kraepelini'' Carlgren, 190 * '' Thalassianthus senckenbergianus'' Kwietniewski, 1896 References Thalassianthidae Hexacorallia genera {{Actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinioidea
Actinioidea is a superfamily of sea anemones in the order Actiniaria. Families classified in the superfamily Actinioidea include:Rodríguez, E., Barbeitos, M. S., Brugler, M.R., Crowley, L. M., Grajales, A., Gusmão, L., Häussermann, V., Reft, A. & Daly, M. (2104). Hidden among sea anemones: The first comprehensive phylogenetic reconstruction of the order Actiniaria (Cnidaria, Anthozoa, Hexacorallia) reveals a novel group of hexacorals. * Family Actiniidae Actiniidae is the largest family of sea anemones, to which most common, temperate, shore species belong. Most members of this family do not participate in symbioses with fishes. Three exceptions are the bubble-tip anemone (with anemonefish and ... * Family Actinodendridae * Family Andresiidae * Family Capneidae * Family Condylanthidae * Family Haloclavidae * Family Homostichanthidae * Family Iosactinidae * Family Limnactiniidae * Family Liponematidae * Family Minyadidae * Family Oractinidae * Family Phymant ... [...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] |
Molecular Mass
The molecular mass (''m'') is the mass of a given molecule: it is measured in daltons (Da or u). Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element. The related quantity relative molecular mass, as defined by IUPAC, is the ratio of the mass of a molecule to the unified atomic mass unit (also known as the dalton) and is unitless. The molecular mass and relative molecular mass are distinct from but related to the molar mass. The molar mass is defined as the mass of a given substance divided by the amount of a substance and is expressed in g/mol. That makes the molar mass an average of many particles or molecules, and the molecular mass the mass of one specific particle or molecule. The molar mass is usually the more appropriate figure when dealing with macroscopic (weigh-able) quantities of a substance. The definition of molecular weight is most authoritatively synonymous with relative molecular mass; ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethality
Lethality (also called deadliness or perniciousness) is how capable something is of causing death. Most often it is used when referring to diseases, chemical weapons, biological weapons, or their toxic chemical components. The use of this term denotes the ability of these weapons to kill, but also the possibility that they may not kill. Reasons for the lethality of a weapon to be inconsistent, or expressed by percentage, can be as varied as minimized exposure to the weapon, previous exposure to the weapon minimizing susceptibility, degradation of the weapon over time and/or distance, and incorrect deployment of a multi-component weapon. This term can also refer to the after-effects of weapon use, such as nuclear fallout, which has highest lethality nearest the deployment site, and in proportion to the subject's size and nature; e.g. a child or small animal. Lethality can also refer to the after-effects of a chemical explosion. A lethality curve can be developed for process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peptide
Peptides (, ) are short chains of amino acids linked by peptide bonds. Long chains of amino acids are called proteins. Chains of fewer than twenty amino acids are called oligopeptides, and include dipeptides, tripeptides, and tetrapeptides. A polypeptide is a longer, continuous, unbranched peptide chain. Hence, peptides fall under the broad chemical classes of biological polymers and oligomers, alongside nucleic acids, oligosaccharides, polysaccharides, and others. A polypeptide that contains more than approximately 50 amino acids is known as a protein. Proteins consist of one or more polypeptides arranged in a biologically functional way, often bound to ligands such as coenzymes and cofactors, or to another protein or other macromolecule such as DNA or RNA, or to complex macromolecular assemblies. Amino acids that have been incorporated into peptides are termed residues. A water molecule is released during formation of each amide bond.. All peptides except cyclic pep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Milne-Edwards
Henri Milne-Edwards (23 October 1800 – 29 July 1885) was an eminent French zoologist. Biography Henri Milne-Edwards was the 27th child of William Edwards, an English planter and colonel of the militia in Jamaica and Elisabeth Vaux, a Frenchwoman. Henri was born in Bruges, in present-day Belgium, where his parents had retired; Bruges was then a part of the newborn French Republic. His father had been jailed for several years for helping some Englishmen in their escape to their country. Henri spent most of his life in France. He was brought up in Paris by his older brother Guillaume Frederic Edwards (1777–1842), a distinguished physiologist and ethnologist. His father was released after the fall of Napoleon. The whole family then moved to Paris. At first he turned his attention to medicine, in which he graduated as an MD at Paris in 1823. His passion for natural history soon prevailed, and he gave himself up to the study of the lower forms of animal life. He became a stude ... [...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] |
Hippolytidae
Hippolytidae is a family of cleaner shrimp, also known as broken-back shrimp or anemone shrimp. The term "broken-back shrimp" also applies to the genus ''Hippolyte'' in particular and "cleaner shrimp" is sometimes applied exclusively to ''Lysmata amboinensis''. Taxonomy As of 2009, there were 36 genera in the family: Morphological and genetic studies have recovered the Hippolytidae as polyphyletic, prompting the recognition of Bythocariidae, Lysmatidae, Merguiidae, and Thoridae.De Grave, S, Li, C.P., Tsang L.M., Chu K.H., Chan T.-Y. (2014). Unweaving hippolytoid systematics (Crustacea, Decapoda, Hippolytidae): resurrection of several families. Zoologica Scripta, 43, 496–507. , the following genera are included in Hippolytidae ''sensu stricto'' in the 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 reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
