@misc{indiciaec13bbb591688,
  title = {Mollusks, Echinoderms, Coelenterates, etc. Part C Echinoderms — Illustration, BHL page 41715508},
  year = {1920},
  url = {https://www.biodiversitylibrary.org/page/41715508},
  note = {Source identifier: page-41715508}
}