World Register of Marine Species (WoRMS)
Fridericia bulboides Nielsen & Christensen, 1959
Martin, P.; Reynolds, J.; van Haaren, T. (2026). World List of Marine Oligochaeta. Fridericia bulboides Nielsen & Christensen, 1959. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=238733 on 2026-08-28
Nielsen, C. O.; Christensen, B. (1959). The Enchytraeidae: critical revision and taxonomy of European species (Studies on Enchytraeidae VII). Natura Jutlandica. 8-9: 1-160.