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Species Bothriocyrtum californicum - California Trapdoor Spider

combative spider - Bothriocyrtum californicum - male California Trapdoor Spider - Bothriocyrtum californicum - female California Trapdoor Spider - Bothriocyrtum californicum - female ID please - Bothriocyrtum californicum - male . - Bothriocyrtum californicum - male Spider Found in Presidio Park - Bothriocyrtum californicum Spider Found in Presidio Park - Bothriocyrtum californicum unknown - Bothriocyrtum californicum
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Mygalomorphae (Mygalomorphs)
Family Ctenizidae (Cork-lid trapdoor spiders)
Genus Bothriocyrtum
Species californicum (California Trapdoor Spider)
Remarks
According to Guinness World Records, as of 2009, this is the strongest spider. It has been able to resist a force 38 times its own weight when defending its trapdoor. This equates to a man trying to hold a door closed while it is being pulled on the other side by a small jet plane.(1) Unfortunately, the Guinness book doesn't mention if it's the strongest North American spider or if it's the strongest in the world. Also, one thing to think about is whether or not every spider's strength has been measured (no, they most definitely have not). The information is flawed in many respects, but it still asserts the fact that these spiders are pretty strong.
Internet References
Peter Bryant's California, Irvine
Works Cited
1.Guinness World Records 2010: The Book of the Decade
Guinness World Records. 2009. Guinness World Records Ltd.