@misc{indiciae20ce8dfd9e00,
  title = {Fieldiana. Zoology / The viperid snake Azemiops: its comparative cephalic anatomy and phylogenetic position in relation to Viperinae and Crotalinae — Illustration, Page 89 / Fig. 9},
  year = {1971},
  url = {https://www.biodiversitylibrary.org/page/2836504},
  note = {Source identifier: page-2836504}
}