Hirudinea
(7)
Oligochaeta
(3)
Pogonophora
(1)
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Polychaeta
(6)
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.
Annelida - Introduction
Annelid worms, brought to you by Biological Sciences at the University of Paisley.
Wormlab Home Page
Photographs and links to other worm pages.
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.
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