@misc{indiciae2a0aef3ac8d7,
  title = {Die Süsswasserfauna Deutschlands. Eine Exkursionsfauna — Illustration, Page 109},
  year = {1909},
  url = {https://www.biodiversitylibrary.org/page/1009620},
  note = {Source identifier: page-1009620}
}