@misc{indiciae22cec7c5a9b9,
  title = {Die Süsswasserfauna Deutschlands. Eine Exkursionsfauna — Illustration, Page 204},
  year = {1912},
  url = {https://www.biodiversitylibrary.org/page/12476003},
  note = {Source identifier: page-12476003}
}