@misc{indiciae31293d5c8a49,
  title = {Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata — Illustration, Plate 2},
  year = {1904},
  url = {https://www.biodiversitylibrary.org/page/1103849},
  note = {Source identifier: page-1103849}
}