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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Female trapdoor spiders stay in and around the same burrow virtually all their lives, so researchers marked her burrow and went back to check on it regularly.
Typically, Trapdoor spiders are around 2-3 centimeters long, with powerful jaws and sharp fangs.
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).
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).
Preface; notes on the Chinese character (Kanji) of Spider; notes on the Chinese character of trapdoor spider; notes on the Japanese name of Doosia spider; notes on the Japanese name of Argiope amoena; notes on the Japanese name of Araneus ventricosus; notes on the Japanese name of a eresid spider; notes on the Japanese name of Storena hoosi; information of the Arachnological Society of East Asia.
The only other similar behavior seems to be that of a trapdoor spider in the family Nemesiidae, Stanwellia nebulosa, found in South Australia (Main 1976).
Trapdoor spiders spin boobytraps to help them nab prey.
The book discusses various aspects of spider ecology, with separate chapters on spiders that hunt, spiders that build webs, tarantulas and trapdoor spiders, the silk factory, mating and breeding, the use of venom, and social spiders.