The Illinois Natural History Survey Annelida Collection is one of the largest state collections of ...
Introduction to the Annelida, the segmented worms.
Information on these organisms and their phylogenetic relationships from the Tree of Life Web Proje...
Photographs and links to other worm pages, from the University of Hawaii at Manoa.
Provides information on this diverse phylum, the characteristics of worms, and information on the t...
The segmented worms, including earthworms, polychaete worms, and leeches.