Gibbs, P.E., 1977. British Sipunculans. Synopses of the British Fauna (NS), 12: 1-35.

Keywords
Aspidosiphon muelleri
Golfingia elongata
Golfingia margaritacea
Golfingia vulgaris
Nephasoma minutum
Onchnesoma squamatum
Onchnesoma steenstrupi
Phascolion strombus
Phascolosoma granulatum
Sipunculus nudus
Thysanocardia procera