Animal Phyla/Priapulida
< Animal Phyla 
Priapulus caudatus, a Priapulid worm.

- Priapulida
- Name Meaning: Penis
- English Common Name: Priapulid worms
- Major distinguishing characteristics: Retractable proboscis surrounded by papillae
- Approximate number of species described: 17
Natural History
Taxonomy
Anatomy
The Fossil Record
Quiz
- Priapulida Quiz
References and Further Reading
- Priapulida at Wikipedia
- Priapulida at Tree of Life
- Priapulida at Encyclopedia of Life