Literature
- Brunberg, L. 1964. On the nemertean fauna of Danish waters. Ophelia, 1: 77-111.
- Gibson, R. 1982. British Nemerteans. Synopses of the British Fauna (NS), 24.
- Hylbom, R. 1957. Studies on palaeonemerteans of the Gullmar Fiord area (west coast of Sweden). Arkiv for Zoologi, Uppsala, 10: 539-582.
- McIntosh, W.C. 1873-74. A monograph of the British annelids, Part I. The nemerteans. Ray Society, London.