H.  Freitag, ?Ancyronyx jaechi sp.n. from Sri Lanka, the first record of the genus Ancyronyx Erichson, 1847 (Insecta: Coleoptera: Elmidae) from the Indian Subcontinent, and a world checklist of species?, Zootaxa, vol. 3382, pp. 59-65, 2012.