World Register of Marine Species (WoRMS)
Cephalothrix filiformis (Johnston, 1828)
Norenburg, J.; Chernyshev, A.; Kajihara, H.; Maslakova, S. (2026). World Nemertea Database. Cephalothrix filiformis (Johnston, 1828). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=573286 on 2026-08-29
Dalyell, J. G. (1853). The Powers of the Creator Displayed in the Creation: or, Observations on Life Amidst the Various Forms of the Humbler Tribes of Animated Nature: with Practical Comments and Illustrations. Volume II. xiii + 359 pp., 46 pls. John van Voorst. London.
Johnston, G. (1828). Contributions to the British fauna. Zoological Journal. 4(13): 52–57.
Keferstein, W. (1862). Untersuchungen über niedere Seethiere. Zeitschrift für wissenschaftliche Zoologie. 12(1): 1–147 plates 1–11.