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Barychelidae

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Barychelidae, also known as brushed trapdoor spiders, is a spider family with about 300 species in 42 genera.[1] Most spiders in this family build trapdoor burrows. For example, the 20 millimetres (0.79 in) long Sipalolasma builds its burrow in rotted wood, with a hinged trapdoor at each end. The 10 millimetres (0.39 in) long Idioctis builds its burrow approximately 5 centimetres (2.0 in) deep, just below the high tide level, sealing the opening with a thin trapdoor.[2]

Some species avoid flooding by plugging their burrows, while others can avoid drowning by trapping air bubbles within the hairs covering their bodies.[3] Some members of this group have a rake on the front surface of their chelicerae used for compacting burrow walls.[4] These spiders can run up glass like tarantulas, and some can stridulate, though it isn't audible to humans.[5]

Distribution

Barychelids are found in Australia, New Caledonia, South America, Africa, Madagascar, India, New Guinea, and Pacific islands.[1]

Genera

As of April 2019, the World Spider Catalog accepts the following genera:[1]

References

  1. ^ a b c "Family: Barychelidae Simon, 1889". World Spider Catalog. Natural History Museum Bern. Retrieved 2019-04-19.
  2. ^ Murphy, Frances; Murphy, John (2000). An Introduction to the Spiders of South East Asia. Kuala Lumpur: Malaysian Nature Society.
  3. ^ Bristowe, W.S. (September 1930). "XXXIV.— Notes on the biology of spiders .—II. Aquatic spiders". Annals and Magazine of Natural History. 6 (33): 343–347. doi:10.1080/00222933008673222. ISSN 0374-5481.
  4. ^ Levi, Herbert W.; Levi, Lorna R. Spiders and Their Kin. p. 20.
  5. ^ Raven, R.J. (1994). "Mygalomorph spiders of the Barychelidae in Australia and the Western Pacific". Memoirs of the Queensland Museum. 35 (2): 291–706.
  • Raven, R.J. (1986): A revision of the spider genus Sason Simon (Sasoninae, Barychelidae, Mygalomorphae) and its historical biogeography. Journal of Arachnology 14: 47-70. PDF
  • Valerio, CE. (1986): Mygalomorph spiders in the Barychelidae (Araneae) from Costa Rica. J. Arachnol. 14: 93-99. PDF (Psalistops venadensis, Trichopelma laselva)
  • Schwendinger, P.J. (2003): Two new species of the arboreal trapdoor spider genus Sason (Araneae, Barychelidae) from Southeast Asia. Raffles Bulletin of Zoology 51(2): 197-207. PDF (S. sundaicum, S. andamanicum)

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Barychelidae: Brief Summary

provided by wikipedia EN

Barychelidae, also known as brushed trapdoor spiders, is a spider family with about 300 species in 42 genera. Most spiders in this family build trapdoor burrows. For example, the 20 millimetres (0.79 in) long Sipalolasma builds its burrow in rotted wood, with a hinged trapdoor at each end. The 10 millimetres (0.39 in) long Idioctis builds its burrow approximately 5 centimetres (2.0 in) deep, just below the high tide level, sealing the opening with a thin trapdoor.

Some species avoid flooding by plugging their burrows, while others can avoid drowning by trapping air bubbles within the hairs covering their bodies. Some members of this group have a rake on the front surface of their chelicerae used for compacting burrow walls. These spiders can run up glass like tarantulas, and some can stridulate, though it isn't audible to humans.

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