@misc{indiciae9b7b61b66e9f,
  title = {Die Süsswasserfauna Deutschlands. Eine Exkursionsfauna — Illustration, Page 16},
  year = {1909},
  url = {https://www.biodiversitylibrary.org/page/1008712},
  note = {Source identifier: page-1008712}
}