@misc{indiciaef090ebb3a204,
  title = {A guide to the shell and starfish galleries (Mollusca, Polyzoa, Brachiopoda, Tunicata, Echinoderma, and worms). Department of Zoology, British museum (Natural history). With numerous illustrations — Illustration, Page 47},
  year = {1901},
  url = {https://www.biodiversitylibrary.org/page/36340094},
  note = {Source identifier: page-36340094}
}