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Arthropods of the class arachnida, order araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms.
(12 Dec 1998)
spider haemangioma, spider mole, spider nevus, spider pelvis < Prev | Next > spider's web, spider telangiectasia, spider venoms
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