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Thwaitesia Argentiopunctata
''Thwaitesia argentiopunctata'' known as the sequined spider, mirror spider, or twin-peaked ''Thwaitesia'' is a species of spider found in all the states of Australia. Body length is around for males, for females. The abdomen is attractively patterned with cream, green, yellow and red. Description These spiders, called mirror or sequined spiders, are all members of several different species of the genus ''Thwaitesia'', which features spiders with reflective silvery patches on their abdomen. The scales look like solid pieces of mirror glued to the spider's back, but they can actually change size depending on how threatened the spider feels. The reflective scales are composed of reflective guanine Guanine () ( symbol G or Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA). In DNA, guanine is paired with cytosine. The guanine nucleoside is called ..., which these and other spiders u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Beech
''Gmelina leichhardtii'', the white beech, is a tree of eastern Australia. Scattered individuals or small groups of trees naturally occur from the Illawarra district of New South Wales (34½° S) to near Proserpine in tropical Queensland. The white beech or grey teak is a fast-growing tree, growing on volcanic and alluvial soils in areas of moderate to high rainfall. It also grows on poorer sedimentary soils in fire free areas. White beech may occasionally be seen in Australian rainforests, though their status is considered "uncommon". Unlike the Australian red cedar, the white beech has not recovered particularly well after logging in the 19th and 20th centuries. Taxonomy and naming Ferdinand von Mueller described the white beech as ''Vitex leichhardtii'' in 1862, from collections near Myall Creek by Ludwig Leichhardt and Clarence River by Dr. Hermann Beckler. George Bentham reassigned it to the genus ''Gmelina'' in his 1870 ''Flora Australiensis''. The genus name honours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chatswood West
Chatswood West is a suburb on the Lower North Shore (Sydney), Lower North Shore of Sydney, in the state of New South Wales, Australia. Chatswood West is located 11 kilometres north-west of the Sydney central business district, in the Local government in Australia, local government areas of the City of Willoughby and City of Ryde. Chatswood, New South Wales, Chatswood is a separate suburb to the east. The locality of Chatswood located west of the Pacific Highway (Australia), Pacific Highway is informally known as West Chatswood, and should not be confused with the separate suburb of Chatswood West, nor should it be confused with the West Chatswood Post Office on Railway Street in the suburb of Chatswood, New South Wales, Chatswood. Chatswood West shares the same postcode as Chatswood, New South Wales, Chatswood which is 2067. Chatswood West is located between the bigger suburbs of Chatswood, New South Wales, Chatswood and North Ryde, New South Wales, North Ryde. It straddles the L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Joseph Rainbow
William Joseph Rainbow (1856–1919) was an entomologist and arachnologist whose work includes the first catalogue of Australian spiders. Life Rainbow was born in 1856 in Yorkshire, England. His father was a Warrant Officer in the Royal Marines, so his education was in a number of port towns and in Edinburgh. He emigrated to New Zealand in 1873, where he wrote for John Ballance's ''Wanganui Herald''. Rainbow's early interest in natural history was assisted by Ballance, who prompted him to build a career in the field. In 1883 he moved to Sydney, Australia and married Arriette Dainty. He continued to contribute to newspapers and journals, including ''The Sydney Morning Herald'', ''Daily Telegraph'', and Evening News, then worked for the Government Printing Office until 1895; in this year he took up a position at the Australian Museum as an entomologist. Rainbow was a founder of the Naturalists' Society of New South Wales, serving as its president. He was a member of the Linnea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider
Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all 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 families have been recorded by 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 segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
States Of Australia
State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our State'', a monthly magazine published in North Carolina and formerly called ''The State'' * The State (Larry Niven), a fictional future government in three novels by Larry Niven Music Groups and labels * States Records, an American record label * The State (band), Australian band previously known as the Cutters Albums * ''State'' (album), a 2013 album by Todd Rundgren * ''States'' (album), a 2013 album by the Paper Kites * ''States'', a 1991 album by Klinik * ''The State'' (album), a 1999 album by Nickelback Television * ''The State'' (American TV series), 1993 * ''The State'' (British TV series), 2017 Other * The State (comedy troupe), an American comedy troupe Law and politics * State (polity), a centralized political organizat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thwaitesia
''Thwaitesia'' is a genus of comb-footed spiders that was first described by Octavius Pickard-Cambridge in 1881. ''T. affinis'' females are long, and males are long. ''T. bracteata'' are about the same size. They are similar in appearance to members of both '' Spintharus'' and '' Episinus''. Species it contains twenty-three species, found in the tropics worldwide: *''Thwaitesia affinis'' O. Pickard-Cambridge, 1882 – Panama to Paraguay *''Thwaitesia algerica'' Simon, 1895 – Algeria *''Thwaitesia argentata'' Thorell, 1890 – Indonesia (Sumatra) *''Thwaitesia argenteoguttata'' ( Tullgren, 1910) – Kenya, Tanzania *''Thwaitesia argenteosquamata'' (Lenz, 1891) – Madagascar *''Thwaitesia argentiopunctata'' (Rainbow, 1916) – Australia (Queensland) *''Thwaitesia aureosignata'' (Lenz, 1891) – Madagascar *''Thwaitesia bracteata'' (Exline, 1950) – Trinidad, Colombia to Paraguay *''Thwaitesia dangensis'' Patel & Patel, 1972 – India *''Thwaitesia glabicauda'' Zhu, 1998 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guanine
Guanine () ( symbol G or Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA). In DNA, guanine is paired with cytosine. The guanine nucleoside is called guanosine. With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. This unsaturated arrangement means the bicyclic molecule is planar. Properties Guanine, along with adenine and cytosine, is present in both DNA and RNA, whereas thymine is usually seen only in DNA, and uracil only in RNA. Guanine has two tautomeric forms, the major keto form (see figures) and rare enol form. It binds to cytosine through three hydrogen bonds. In cytosine, the amino group acts as the hydrogen bond donor and the C-2 carbonyl and the N-3 amine as the hydrogen-bond acceptors. Guanine has the C-6 carbonyl group that acts as the hydrogen bond acceptor, while a group at N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theridiidae
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of Araneomorphae, araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genus, genera, and is the most common arthropod found in human dwellings throughout the world. Theridiid spiders are both Entelegynae, entelegyne, meaning that the females have a genital plate, and Cribellum, ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles (setae) on the Arthropod leg, tarsus of the fourth leg. The family includes some model organisms for research, including the List of medically significant spider bites, medically important Latrodectus, widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Australia
Australia has a number of highly venomous spiders, including the Sydney funnel-web spider, its relatives in the family Hexathelidae, and the redback spider, whose bites can be extremely painful and have historically been linked with deaths in medical records. Most Australian spiders do not have venom that is considered to be dangerously toxic. No deaths caused by spider bites in Australia have been substantiated by a coronial inquest since 1979. There are sensationalised news reports regarding Australian spiders that fail to cite evidence. ''A Field Guide to Spiders of Australia'' published by CSIRO Publishing in 2017 featuring around 836 species illustrated with photographs of live animals, around 381 genera and 78 families, introduced significant updates to taxonomy from Ramirez, Wheeler and Dmitrov Estimates put the total number of Australian spider species at about 10,000. Only around 3,600 have been described. Little information is known about many undiscovered species. New s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Described In 1916
Spiders (order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all 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 families have been recorded by 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 segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had a separate th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
