Name: Sipunculida; Sipunculid worms; Peanut worms.
Zoology: ± 300 species; bilaterally symmetrical, unsegmented marine worms; Maybe a subgroup of
Annelida based on recent molecular work.
The
Sipuncula or Sipunculida, sipunculid worms or peanut worms, are a phylum containing 144-320 species (estimates vary) of bilaterally symmetrical, unsegmented marine worms. Sipunculid worm jelly (土笋冻) is a delicacy in the town of Xiamen in Fujian province of China.
Classes, Orders and Families
Class Phascolosomatidea
Order Aspidosiphoniformes
Family Aspidosiphonidae
Order Phascolosomatiformes
Family Phascolosomatidae
Class Sipunculidea
Order Golfingiiformes
Family Golfingiidae
Family Phascolionidae
Family Themistidae
Order Sipunculiformes
Family Sipunculidae