Literature
- Jones, A.M. & J.M. Baxter 1987. Molluscs: Caudofoveata, Solenogastres, Polyplacophora and Scaphopoda. Synopses of the British fauna (NS), 37: 1-123.
- Muus, B.J. 1959. Skallus Søtaender Blaeksprutter. Danmarks Fauna, 65. Dansk Naturhistorisk Forening.