@misc{indiciaed0781aa8fc5c,
  title = {Fauna Boica, oder, Gemeinnützige Naturgeschichte der Thiere Bayerns / Fauna Boica, oder, Gemeinnützige Naturgeschichte der Thiere Bayerns. [v.6], [Snails] — Illustration, Plate 12 / Page 71},
  year = {1834},
  url = {https://www.biodiversitylibrary.org/page/50886703},
  note = {Source identifier: page-50886703}
}