Species:
Prosphaerosyllis nathani >
Genus:
Prosphaerosyllis >
Subfamily:
Exogoninae >
Family:
Syllidae >
Suborder:
Nereidiformia >
Order:
Phyllodocida >
Subclass:
Errantia >
Class:
Polychaeta >
Phylum:
Annelida >
Kingdom:
Animalia >
Unranked:
Biota >