original description
(of Helix cygneus W. H. Benson, 1853) Benson, W. H. (1853). Characters of several Helices from West Australia and the Mauritius; with notes on some species of <i>Cyclostoma</i> from Borneo. <em>Annals and Magazine of Natural History.</em> 11(61): 29-33., available online at https://www.biodiversitylibrary.org/page/13785720
page(s): 30 [details]
basis of record
ABRS. (2009). Australian Faunal Directory (AFD). <em>Australian Biological Resources Study, Canberra.</em> , available online at http://www.environment.gov.au/science/abrs/online-resources/fauna [details]
additional source
Preece, R. C., White, T. S., Raheem, D. C., Ketchum, H., Ablett, J., Taylor, H., Webb, K. & Naggs, F. (2022). William Benson and the golden age of malacology in British India: Biography, illustrated catalogue and evaluation of his molluscan types. <em>Tropical Natural History.</em> No. 6: Supplement: 1-434., available online at https://li01.tci-thaijo.org/index.php/tnh/article/view/257073/175390
page(s): 142, Fig. 62 A-D [details] Available for editors [request]
From editor or global species database