Priapulidae

Priapulidae is the canonical family of priapulid worms, comprising Priapulus and Priapulosis as well as the Carboniferous genus Priapulites.

Systematics
Classification and maximum trunk length:


 * Family Priapulidae
 * Genus Acanthopriapulus
 * Species A. horridus (24.5 mm)
 * Genus Priapulopsis
 * Species P. australis (50 mm)
 * Species P. bicaudatus (100 mm)
 * Species P. cnidephorus (only known from a postlarval specimen)
 * Genus Priapulus
 * Species P. abyssorum (30 mm)
 * Species P. caudatus (200 mm)
 * Species P. tuberculatospinosus (200 mm)