@misc{indiciaec0b2b9c1af97,
  title = {Die Süsswasserfauna Deutschlands. Eine Exkursionsfauna — Illustration, Page 181},
  year = {1909},
  url = {https://www.biodiversitylibrary.org/page/1009735},
  note = {Source identifier: page-1009735}
}