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Oxyopes Takobius
''Oxyopes takobius'' is a species of spiders in the genus ''Oxyopes'' of the lynx spider family, Oxyopidae. The species was first described in 1969, and is found from Central Asia to China. Its venom contains a peptide toxin called oxyopinin Oxyopinins are a group of peptide toxins present in the venom of lynx spiders belonging to the genus ''Oxyopes'', from which they derive their name. Properties Oxyopinins have antimicrobial, haemolytic, and insecticidal activities. They are the lar ... (oxyopinin 4a), which was discovered in 2002. This species has been misidentified in pharmacological research as "''Oxyopes kitabensis''."''Venom Composition and Strategies in Spiders: Is Everything Possible?,'' Lucia Kuhn-Nentwig, Reto Stocklin, and Wolfgang Nentwig, Table 2, page 9, collected in References External linksInformation at Encyclopedia of Life [...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] |
Oxyopes
''Oxyopes'' is a genus of lynx spiders found worldwide. It includes arounds 300 species and is classified under the lynx spider family Oxyopidae. Like other lynx spiders, they are easily recognizable by the six larger eyes arranged hexagonally on top of the head (prosoma), with the remaining smaller two eyes in front. They are also characterized by long spine-like bristles (setae) on their legs. They are ambush predators, actively hunting prey by sight. Though they produce and use silk, they do not build webs to capture prey. The genus was first established in 1804 by the French zoologist Pierre André Latreille. The generic name means "keen-eyed", from Ancient Greek ὀξύς (''oxús'', "sharp") and ὤψ (''ṓps'', "eye"). Species Species classified under ''Oxyopes'' (including subspecies) and their distribution ranges are the following: * '' Oxyopes abebae'' Strand, 1906 — Ethiopia, East Africa * '' Oxyopes acleistus'' Chamberlin, 1929 — USA, Mexico * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxyopidae
Lynx spider (Oxyopidae) is a family of araneomorph spiders first described by Tamerlan Thorell in 1870. Most species make little use of webs, instead spending their lives as hunting spiders on plants. Many species frequent flowers in particular, ambushing pollinators, much as crab spiders do. They tend to tolerate members of their own species more than most spiders do, and at least one species has been identified as exhibiting social behaviour. Description There are several genera of Oxyopidae and they differ in their habits and adaptations. Most of them have large spiny bristles on their legs and in many species the bristles form almost a basket-like structure that may assist in confining the prey that they grasp, and protect the spider from its struggles. Most '' Oxyopes'' and '' Hamataliwa'' species are small to medium in size. Lynx spiders, in spite of being largely ambush hunters, are very speedy runners and leapers, alert and with good vision. Oxyopidae in general rely on k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxyopinin
Oxyopinins are a group of peptide toxins present in the venom of lynx spiders belonging to the genus ''Oxyopes'', from which they derive their name. Properties Oxyopinins have antimicrobial, haemolytic, and insecticidal activities. They are the largest linear cationic amphipathic peptides detected in the venom of any spider. They are structurally α-helical peptides. Subtypes The first five peptides, namely oxyopinins 1, 2a, 2b, 2c, and 2d, were described in 2002 from ''Oxyopes kitabensis''. Oxyopinin 1 is composed of 48 amino acid residues, with a molecular mass of 5221.2 Da. It has significant amino acid sequence similarity to other venoms of other animals. For example, it has 20% sequence similarity with the ant insecticidal peptide ponericinL2. It is also 29% identical to the amino acid residues of the frog antimicrobial peptide dermaseptin. Oxyopinins 2a, 2b, 2c, and 2d (originally designated oxyopinins 2, 3, 4, and 5 respectively) are very similar in their sequences. At le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Asia
Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and rank seventh in total species diversity among all Order (biology), orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 Family (biology), families have been recorded by Taxonomy (biology), taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segmentation (biology), segments are fused into two Tagma (biology), tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical Gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
