Sipuncula

Sipuncula
Scientific classification
Kingdom:	Animalia
Superphylum:	Lophotrochozoa
Phylum:	Sipuncula

The Sipuncula, also known as the Sipunculida, or peanut worms, are a small phylum of marine worms,^[1] or they may be a class in the Annelida.^[2] The phylum has 144–320 species (estimates vary) of these bilaterally symmetrical, unsegmented worms.

1. ↑ Cite error: The named reference IZ was used but no text was provided for refs named (see the help page).
2. ↑ Anderson D.T. 1998. The Annelida and their close relatives. In Anderson D.T. Invertebrate Zoology. Oxford University Press, pp. 183–196. ISBN 0-19-551368-1