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Sipuncula

Animal
The Sipuncula or Sipunculida is a class containing about 162 species of unsegmented marine annelid worms. Sipuncula was once considered a phylum, but was demoted to a class of Annelida, based on recent molecular work. Sipunculans vary in size but... Wikipedia
Scientific name: Sipuncula
Phylum: Annelida
Class: Sipuncula; Rafinesque, 1814
Domain: Eukaryota
Kingdom: Animalia
Lower classifications