World Register of Marine Species (WoRMS)
Read, G.; Fauchald, K. (Ed.) (2026). World Polychaeta Database. Vermilia pygidialis Willey, 1905. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=338307 on 2026-08-02
Willey, Arthur. (1905). Report on the Polychaeta collected by Professor Herdman, at Ceylon, in 1902. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar by W.A. Herdman, with supplementary reports upon the Marine Biology of Ceylon, by Other Naturalists. Part IV. Supplementary Reports. 30: 243-324, plates I-VIII.