@misc{indiciae6d9c6a5dba1a,
  title = {Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft — Illustration, Taf. 4},
  year = {1906},
  url = {https://www.biodiversitylibrary.org/page/15599342},
  note = {Source identifier: page-15599342}
}