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Hypochilus thorelli
''Hypochilus thorelli'' is a species of spider in the family Hypochilidae.〔 Unlike almost all other araneomorph or "true" spiders, members of the family have four book lungs. They are often called "lampshade spiders" because of the shape of their webs which are usually built underneath ledges or projections. ''H. thorelli'' is found in the southern Appalachian Mountains of the eastern United States.
==Description==
The female has a cephalothorax about 5.5 mm long and an abdomen (opisthosoma) about 9 mm long. The male is smaller, with a cephalothorax of about 4 mm and an abdomen of about 6 mm. Both sexes have very long legs: the first leg of the female is about 63 mm long; the male has longer and thinner legs, the first leg being about 80 mm long. The cephalothorax of both sexes is light yellowish grey, with a darker star shape underneath. The upper surface of the abdomen is greyish with irregular black lines and marks; the under surface is whiter. There are eight eyes; two clusters of three each on either side and two more central eyes. Both a cribellum and a calamistrum are present.〔
Like all species in the family Hypochilidae, ''Hypochilus thorelli'' has four book lungs, like mesothele and mygalomorph spiders and unlike almost all other araneomorph spiders. The outlines of the lungs are visible on the under surface of the abdomen.〔
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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