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IWU

To use this pictorial key, compare the characteristics of your animal to those in the picture. A description of characteristics is provided below each image. Selecting the highlighted words will link you to the glossary. Select the image that best matches your animal. This will take you to the next page in the key until you reach the genus identification for your specimen. Go to the Taxonomy page for more information about classification of tardigrades.

Phylum Tardigrada

Click here to link to more detailed illustrations of tardigrades.

Click on image to continue with the key.

Tardigrades are microscopic (0.1-1 mm in length) invertebrates that have 4 pairs of legs and look superficially segmented.


Images appearing in this key were, in part, redrawn from various sources including Pulgia 1959, Schuster et al.1980, Nelson and Higgins 1990, and Pilato and Binda 1991.

KeyPage1
Website Authors: Karen Lindahl and Professor Susie Balser in affiliation
with Illinois Wesleyan University. Last revised 2 Oct. 1999.