THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapymultimedia

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  • Spider Bites
  • Brown Recluse Spider

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    Brown Recluse Spider

    The body of an adult brown recluse spider may be up to one-half inch long; adults may have a characteristic fiddle marking on the thorax (shown).

    Photo courtesy of Mike Cardwell (Extreme Wildlife Photography, Sacramento, CA).