source of synonymy
Vinarski, M. V.; Kantor, Yu. I. (2016). Analytical catalogue of fresh and brackish water molluscs of Russia and adjacent countries. A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Science, Moscow, 544 pp. [details] Available for editors [request]
From editor or global species database
Taxonomy Starobogatov et al. [1989] used the name Physa aenigma Westerlund, 1876 for designation of a North Asian species of physid snails. Taylor [2003] had shown that the holotype of Ph. aenigma represents nothing but a sinistral shell of a certain species of land snail (most probably belonging to the genus Cochlicopa Férussac, 1821) and, thus, this taxonomic name is not available for any physid species [details]