Clitellata
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Clitellata is a Superclass (or Subphylum) of Annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycle.
[edit] Classes
- Branchiobdellae, Leeches.
- Hirudinea, Leeches.
- Oligochaeta, Earthworms (aquatic microdriles + terrestrial megadriles).
[edit] External links
Wikimedia Commons has media related to:
- Brief description
- An introductory key to revised earthworm family classification
- A Series of Searchable Texts on Earthworm Biodiversity, Ecology and Systematics from Various Regions of the World
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