The Sipuncula, also known as the Sipunculida, or peanut worms, are a small phylum of marine worms, or they may be a class in the Annelida. The phylum has 144–320 species (estimates vary) of these bilaterally symmetrical, unsegmented worms.
Sipuncula
Questions and Answers
Q: What are Sipuncula?
A: Sipuncula are a small phylum of marine worms, also known as the Sipunculida or peanut worms.
Q: Are Sipuncula segmented?
A: No, Sipuncula are unsegmented worms.
Q: How many species of Sipuncula are there?
A: Estimates vary, but there are 144-320 species of Sipuncula.
Q: Are Sipuncula bilaterally or radially symmetrical?
A: Sipuncula are bilaterally symmetrical worms.
Q: Are Sipuncula only found in marine environments?
A: Yes, Sipuncula are marine worms.
Q: Are Sipuncula a phylum or a class within the Annelida?
A: Sipuncula may be a class within the Annelida, but they are also recognized as a distinct phylum.
Q: What is another name for Sipuncula?
A: Sipuncula are also known as the Sipunculida or peanut worms.