Sipunculidea
Encyclopedia
Sipunculidea is a class of marine peanut worms. The tentacles form a circle around the mouth whereas those of the sister taxon, Phascolosomatidea
, are only found above the mouth. Most species burrow in the substrate but some live in the empty shells of gastropods.
There are two orders:
Phascolosomatidea
Phascolosomatidea is a class of peanut worms containing two orders:* Aspidosiphoniformes* Phascolosomatiformes...
, are only found above the mouth. Most species burrow in the substrate but some live in the empty shells of gastropods.
There are two orders:
- GolfingiiformesGolfingiiformesGolfingiiformes is a order of peanut worms. It contains the following families:* Golfingiidae* Phascolionidae* Themistidae...
- Sipunculiformes