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Sydney funnel-web spider
The Sydney funnel-web spider (''Atrax robustus'') is a species of Australian funnel-web spider usually found within a radius of Sydney, New South Wales, Australia. It is a venomous mygalomorph spider with a bite capable of causing serious injury or death in humans if left untreated.
==Taxonomy==
The Reverend Octavius Pickard-Cambridge was the first to describe the Sydney funnel-web spider, from a female specimen in 1877. It still bears its original name of ''Atrax robustus''. Some years later, William Joseph Rainbow described a male Sydney funnel-web as ''Euctimena tibialis'', and female specimen as ''Poikilomorpha montana'', before all were found to be the same species. The species name is derived from the Latin ''robustus'' "strong/sturdy/mature".
''Atrax robustus'' is one of three species of the genus ''Atrax'' in the family Hexathelidae, the other two being ''Atrax sutherlandi'' and ''Atrax yorkmainorum''.〔Platnick N I (World Spider Catalog ) (2008). In 1988, other species were transferred from ''Atrax'' to the genus ''Hadronyche'': ''A. adelaidensis'', ''A. eyrei'', ''A. flindersi'', ''A. formidabilis'', ''A. infensus'', ''A. modestus'','' A. pulvinator'', ''A. validus'','' A. venenatus'' and ''A. versutus''.〕 The Sydney funnel-web spider shares its name with some members of the genus ''Hadronyche''. However, it remains, together with the northern tree funnel-web, the only Australian funnel-web spider known to have inflicted fatal bites to humans.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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