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Atrax
''Atrax'' is a genus of venomous Australian funnel web spiders that was first described by O. Pickard-Cambridge in 1877 from the type species ''Atrax robustus''. it contains only three species: ''A. robustus'', '' A. sutherlandi'', and '' A. yorkmainorum''. Originally placed with the curtain web spiders, it was moved to the Hexathelidae in 1980, then to the Australian funnel-web spiders in 2018. Description They are medium to large spiders for their family ranging from 1.5 to 4.5 cm. As most in the Mygalomorphae Infraorder, they have robust bodies. With a glossy dark coloration in their carapace and legs, and a grey opisthosoma. They also have the same long life, ranging from 4 to 20 years. They are usually found in burrows with little silk lining, found under rocks or logs. With their aptly named funnel like webs. They are found in the coasts and highlands of southeastern Australia. Identification They can be identified from others of the same family by the large coni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atrax Yorkmainorum
''Atrax yorkmainorum'' is a venomous species of Australian funnel-web spider belonging to the Atracidae family and is found in forests in the vicinity of Canberra and south-eastern New South Wales. The genus Atrax was first documented in 1877 and the ''Atrax yorkmainorum'' species was first described in 2010. The adult male and female have a similar appearance, with the female being slightly larger. Females generally have a body length of 18.84mm whilst the male has an average body length between 16-17mm. Both sexes have a matte abdomen with a dark brown/black shiny body. Funnel web spiders are mainly nocturnal and perform their hunting, web-making and mating at night. The female ''Atrax yorkmainorum'' spends most of its time within its distinguishable burrow that is lined with silk trip lines that extrude out from the tunnel. It preys on small and large insects as well as lizards that walk across the silk trip lines. The spider will sense the vibrations from the web, then a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Funnel-web Spider
Atracidae is a family of mygalomorph spiders, commonly known as Australian funnel-web spiders or atracids. It has been included as a subfamily of the Hexathelidae, but is now recognized as a separate family. All members of the family are native to Australia. Atracidae consists of three genera: ''Atrax'', '' Hadronyche'', and ''Illawarra'', comprising 35 species. Some members of the family produce venom that is dangerous to humans, and bites by spiders of six of the species have caused severe injuries to victims. The bites of the Sydney funnel-web spider (''Atrax robustus'') and northern tree-dwelling funnel-web spider (''Hadronyche formidabilis'') are potentially deadly, but no fatalities have occurred since the introduction of modern first-aid techniques and antivenom. Description Spiders in the family Atracidae are medium to large in size, with body lengths ranging from 1 to 5 cm (0.4 to 2.0 in), with one exceptional specimen reaching 8 cm (3.1 in). They have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Funnel-web Spider
The Sydney funnel-web spider (''Atrax robustus'') is a species of venomous Mygalomorphae, mygalomorph spider native to eastern Australia, usually found within a radius of Sydney. It is a member of a group of spiders known as Australian funnel-web spiders. Its bite is capable of causing serious illness or death in humans if left untreated. The Sydney funnel-web has a body length ranging from . Both sexes are glossy and darkly coloured, ranging from blue-black, to black, to shades of brown or dark-plum coloured. Taxonomy Octavius Pickard-Cambridge was the first to describe the Sydney funnel-web spider, from a female specimen housed in the British Museum in 1877. Establishing the genus ''Atrax'', he named it ''Atrax robustus''. The species name is derived from the Latin ''robustus'', "strong/sturdy/mature". Some years later, William Joseph Rainbow described a male Sydney funnel-web as a new species—''Euctimena tibialis''—from a spider he found under a log in Turramurra, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atrax Robustus
The Sydney funnel-web spider (''Atrax robustus'') is a species of venomous mygalomorph spider native to eastern Australia, usually found within a radius of Sydney. It is a member of a group of spiders known as Australian funnel-web spiders. Its bite is capable of causing serious illness or death in humans if left untreated. The Sydney funnel-web has a body length ranging from . Both sexes are glossy and darkly coloured, ranging from blue-black, to black, to shades of brown or dark-plum coloured. Taxonomy Octavius Pickard-Cambridge was the first to describe the Sydney funnel-web spider, from a female specimen housed in the British Museum in 1877. Establishing the genus ''Atrax'', he named it ''Atrax robustus''. The species name is derived from the Latin ''robustus'', "strong/sturdy/mature". Some years later, William Joseph Rainbow described a male Sydney funnel-web as a new species—''Euctimena tibialis''—from a spider he found under a log in Turramurra, and another from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atrax Sutherlandi
''Atrax sutherlandi'' is a species of Australian funnel-web spider found in forests on the far southern coast of New South Wales and in eastern Victoria. It was named after Struan Sutherland, whose work resulted in a successful funnel-web spider antivenom. Normally, ''A. sutherlandi'' has a glossy black back and chelicerae The chelicerae () are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as either articulated fangs, or similarly ... ("fangs"), as well as a deep-brown or plum-coloured underbelly. An adult grows to a length of 2 inches (5 cm). A report in 2015 described an unusual individual with a blood-red belly and chelicerae. Unlike its close relative the Sydney funnel web that lives in urban areas, ''A. sutherlandi'' commonly resides in remote areas, thus posing little danger to the public. Due to the niche microhabitat of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mygalomorphae
The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to them forming trapdoors over their burrows. Other prominent groups include Australian funnel web spiders and tarantulas, with the latter accounting for around one third of all mygalomorphs. Description This group of spiders comprises mostly heavy-bodied, stout-legged spiders including tarantulas, Australian funnel-web spiders, mouse spiders, and various families of spiders commonly called trapdoor spiders. Like the " primitive" suborder of spiders Mesothelae, they have two pairs of book lungs, and downward-pointing chelicerae. Because of this, the two groups were once believed to be closely related. Later it was realized that the common ancestors of all spiders had these features (a state known as symplesiomorphy). Following the branching ... [...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] |
Mygalomorphae Genera
The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to them forming trapdoors over their burrows. Other prominent groups include Australian funnel web spiders and tarantulas, with the latter accounting for around one third of all mygalomorphs. Description This group of spiders comprises mostly heavy-bodied, stout-legged spiders including tarantulas, Australian funnel-web spiders, mouse spiders, and various families of spiders commonly called trapdoor spiders. Like the " primitive" suborder of spiders Mesothelae, they have two pairs of book lungs, and downward-pointing chelicerae. Because of this, the two groups were once believed to be closely related. Later it was realized that the common ancestors of all spiders had these features (a state known as symplesiomorphy). Following the branching ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexathelidae
Hexathelidae is a family of mygalomorph spiders. It is one of a number of families and genera of spiders known as funnel-web spiders. In 2018, the family was substantially reduced in size by genera being moved to three separate families: Atracidae, Macrothelidae and Porrhothelidae. Atracidae includes the most venomous species formerly placed in Hexathelidae. Description These spiders are medium to large in size, with body lengths ranging from . The body is typically three times longer than it is wide. They are darkly colored, ranging from black to brown, with a glossy carapace covering the front part of the body. Like the related diplurid spiders, the hexathelids have generally long spinnerets. Their moderately long posterior spinnerets and other features make the Hexathelidae appear similar to the Dipluridae, and were considered a subfamily of the latter until 1980. Like other Mygalomorphae (also called the Orthognatha, an infraorder of spiders which includes the true taran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dipluridae
The family Dipluridae, known as curtain-web spiders (or confusingly with other distantly related ones as funnel-web tarantulas) are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion. A number of genera, including that of the Sydney funnel-web spider (''Atrax''), used to be classified in this family but have now been moved to Hexathelidae. Description Dipluridae lack a rastellum (stout conical spines) on their chelicerae. Their carapace is characterized by the head region not being higher than the thoracic region. Their posterior median spinnerets (silk-extruding organs) are much shorter than their posterior lateral spinnerets, which have three segments, and are elongated (almost as long as their opisthosoma). Most of the species are medium to small-sized spiders; some may measure about 15 mm.Murphy & Murphy 2000 The cave species ''Masteria caeca'' is eyeless. Biology Mem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octavius Pickard-Cambridge
Octavius Pickard-Cambridge Fellow of the Royal Society, FRS (3 November 1828 – 9 March 1917) was an England, English clergyman and zoologist. He was a keen arachnologist who described and named more than 900 species of spider. Life and work Pickard-Cambridge was born in Bloxworth rectory, Dorset, the fifth son of Rev. George Pickard, rector and squire of Bloxworth: the family changed its name to Pickard-Cambridge in 1848 after receiving the property left behind by a relative, Charles Owen Cambridge, of Whitminster House in Gloucestershire. Octavius was tutored at home by the poet William Barnes, after failing to receive admission to Winchester College. He also learned to play the violin from Sidney Smith. He then studied law in London before theology at the Durham University, University of Durham. He was very active and made many friends in this period. He served as steward at steeplechases and presided over the college choral society. In 1857 he presented the Pickard-Camb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hadronyche
''Hadronyche'' is a genus of venomous Australian funnel-web spiders that was first described by L. Koch in 1873. Originally placed with the curtain web spiders, it was moved to the Hexathelidae in 1980, then to the Atracidae in 2018. Description Their size varies significantly, measuring from 1 to 5 cm. Most species in this genus, as most Myglomorphae, have a glossy black or brown carapace. They have a very long life span for spiders, having been known to live for up to 20 years. They can be easily identified by the raised morphology of their caput (the front part of the cephalothorax). If identification is not certain, they can be distinguished from ''Atrax'' by the unmodified or blunt apophysis in their second tibia, or from ''Illawarra'' by the male tarsi, which have two instead of tree ventral spine rows. Venom While Australian funnel-web spider venom is medically significant, no human fatalities as a result have been recorded since the introduction of antivenom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
