@misc{indiciae29ca0c9c62b6,
  title = {Differences between the beaked whales Mesoplodon mirus and Mesoplodon gervaisi — Illustration, Page 3},
  year = {1957},
  url = {https://www.biodiversitylibrary.org/page/63410255},
  note = {Source identifier: page-63410255}
}