Rank Class | Order Phascolosomatiformes Scientific name Phascolosomatidea | |
Similar Phascolosomatidae, Sipuncula, Sipunculidea, Golfingiidae, Themiste | ||
Phascolosomatidea is a class of peanut worms containing two orders:
Their hooks are arranged in regular rings.
References
Phascolosomatidea Wikipedia(Text) CC BY-SA