@misc{indiciaee95232075815,
  title = {Monographies d'échinodermes vivans et fossiles. 4->, Anatomie des Echinodermes — Illustration, Tab. 7},
  year = {1841},
  url = {https://www.biodiversitylibrary.org/page/52849628},
  note = {Source identifier: page-52849628}
}