In most modern classifications comprising multicellular eukaryotic organisms with wall-less, non-photosynthetic cells.
The following taxa of the phylum Sipuncula of this kingdom occur in the region:
Phylum Sipuncula Class Phascolosomatidea Order Aspidosiphonida Family Aspidosiphonidae Genus Aspidosiphon Order Phascolosomatida Family Phascolosomatidae Genus Phascolosoma Class Sipunculidea Order Golfingiida Family Golfingiidae Genus Golfingia Genus Nephasoma Genus Thysanocardia Family Phascolionidae Genus Onchnesoma Genus Phascolion Order Sipunculida Family Sipunculidae Genus Sipunculus Aspidosiphon muelleri Golfingia elongata Golfingia margaritacea Golfingia vulgaris Nephasoma minutum Onchnesoma squamatum Onchnesoma steenstrupi Phascolion strombus Phascolosoma granulatum Sipunculus nudus Thysanocardia procera |