trapdoor spider

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trapdoor spider,

burrow-dwelling spiderspider,
organism, mostly terrestrial, of the class Arachnida, order Araneae, with four pairs of legs and a two-part body consisting of a cephalothorax, or prosoma, and an unsegmented abdomen, or opisthosoma.
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 of the Old and New Worlds. Trapdoor spiders dig burrows, which they line with silk and protect by constructing one or two circular, hinged trapdoors. The spiders emerge through the snug-fitting camouflaged doors to search for prey. Usually the burrow entrance has a door, the outer surface of which is camouflaged to blend in with the surrounding terrain. If a second door is present, it is usually below the entrance door. Trapdoor spiders are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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, class Arachnida, order Araneae, family Ctenizidae.
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References in periodicals archive ?
Biology of the arid-adapted Australian trapdoor spider Anidiops villosus (rainbow).
The trapdoor spiders we collected recently from Angul and Ganjam districts in Orissa have only two spinnerets, which after we consulted the literature (O.
The family Ctenizidae (Orthognatha, Mygalomorphae) is one of the four families of trapdoor spiders found in India (Siliwal & Molur 2007).
Californian trapdoor spider - can lift 149 times its own weight.
Deep molecular divergence in the absence of morphological and ecological change in the Californian coastal dune endemic trapdoor spider Aptostichus simus.
Natural history of the Californian trapdoor spider genus Aliatypus (Araneae, Antrodiae tidae).