@misc{indiciaec9f697a1de21,
  title = {Mollusks, Echinoderms, Coelenterates, etc. Part A Mollusks, Recent and Pleistocene — Illustration, BHL page 41881920},
  year = {1919},
  url = {https://www.biodiversitylibrary.org/page/41881920},
  note = {Source identifier: page-41881920}
}