Literature
- Beddard, F.E. 1893. On some new species of earthworms from various parts of the world. Proceedings of the Zoological Society of London 1892: 666-706.
- Erséus, C., Omodeo, P. & Rota, E. 1994. First records of the allochthonous species Dichogaster saliens and D. bolaui (Oligochaeta: Octochaetidae) from Sweden. Megadrilogica 6(2): 17-20.
- Sims, R.W. & Gerard, B.M. 1985. Earthworms. Synopses of the British Fauna (New Series) 31. Brill & Backhuys, London etc. 171 p.