MolluscaBase name details
original description
(of Helix levis L. Pfeiffer, 1845) Pfeiffer, L. (1845). Diagnosen einiger neuer Heliceen. <em>Zeitschrift für Malakozoologie.</em> 2: 152–158., available online at https://biodiversitylibrary.org/page/16291740
page(s): 152 [details]
basis of record
Baily, J. L., Jr. (1942). More sinistral gastropods. <em>The Nautilus.</em> 55(3): 102., available online at https://www.biodiversitylibrary.org/page/8520011 [details]
additional source
Pilsbry, H. A. (1927). Expedition to Guadalupe Island, Mexico in 1922. Land and freshwater mollusks. <em>Proceedings of the California Academy of Sciences.</em> (4) 16(7): 159-203, plates 6-12., available online at https://www.biodiversitylibrary.org/page/3174272
page(s): 179 [details] Available for editors [request]