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- Bipectina is a clade of avicularioid mygalomorph spiders first proposed by in 1993, based on a morphological cladistic analysis. The clade was marked by a number of morphological features, and in particular by the presence of two rows of teeth on the superior tarsal claws of the legs of both sexes, meaning that the claws were bipectinate. The clade was supported by some subsequent analyses, although not all. A major phylogenetic study in 2020 upheld the monophyly of the clade, which contained 19 of the 25 accepted families of the Avicularioidea. The majority of extant members of the Bipectina clade live in a burrow with one or more trapdoors, many adding radial alarm threads that alert them to the presence of prey. Others have reverted to using various kinds of web, as the earliest avicularioids are believed to have done, or have lost trapdoors, living in open burrows. (en)
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- 8448 (xsd:nonNegativeInteger)
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- PSM V38 D203 Section view of the curved burrow of stothis astuta.jpg (en)
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- Burrow of Trichopelma astuta, a member of the family Theraphosidae (en)
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- Diplura lineata, a member of the family Dipluridae (en)
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- Bipectina is a clade of avicularioid mygalomorph spiders first proposed by in 1993, based on a morphological cladistic analysis. The clade was marked by a number of morphological features, and in particular by the presence of two rows of teeth on the superior tarsal claws of the legs of both sexes, meaning that the claws were bipectinate. The clade was supported by some subsequent analyses, although not all. A major phylogenetic study in 2020 upheld the monophyly of the clade, which contained 19 of the 25 accepted families of the Avicularioidea. (en)
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