Annelida - Introduction: Annelid worms, brought to you by Biological Sciences at the University of Paisley.
Center for Annelida Resources: The Illinois Natural History Survey Annelida Collection is one of the largest state collections of freshwater oligochaetes in the USA, holding more than 300,000 specimens.
Introduction to the Annelida: Introduction to the Annelida, the segmented worms.
Phylum Annelida: The segmented worms, including earthworms, polychaete worms, and leeches.
UCSC Annelida: Anatomical illustrations of segmented worms from the University of California at Santa Cruz.
Wormlab Home Page: Photographs and links to other worm pages.