Spiraserpula ypsilon Pillai & Ten Hove, 1994

Pillai, T. Gottfried and Hove, Harry A. ten 1994. On recent species of Spiraserpula Regenhardt, 1961, a serpulid polychaete genus hitherto known only from Cretaceous and Tertiary fossils. Bulletin of the Natural History Museum, London 60(1): 39-104.