Connolly, M. 1939. A Monographic survey of South African non-marine Mollusca. Annals of the South African Museum 33:1-660.
Herbert, D.G. and Kilburn, R.N. in prep. A field guide to the snails and slugs of eastern South Africa
IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004.
|Citation:||Herbert, D.G. 2004. Trachycystis clifdeni. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 19 June 2013.|
|Feedback:||If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided|