Archivo: Ascaris lumbricoides

Description: An adult Ascaris lumbricoides worm. Diagnostic characteristics: tapered ends; length 15 to 35 cm (the females tend to be the larger ones). This worm is a female, as evidenced by the size and genital girdle (the dark circular groove at bottom area of image).
Title: Ascaris lumbricoides
Credit: CDC Division of Parasitic Diseases http://www.dpd.cdc.gov/dpdx/HTML/ImageLibrary/Ascariasis_il.htm http://www.dpd.cdc.gov/dpdx/images/ParasiteImages/A-F/Ascariasis/Ascaris_female.jpg Originally uploaded to en:wikipedia
Permission: This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No