XIV. Preliminary communication on the structure and presence in sphenodon and other lizards of the median eye, described by von Graaf in Anguis fragilis
- 31 December 1886
- journal article
- Published by The Royal Society in Proceedings of the Royal Society of London
- Vol. 40 (242-245) , 559-566
- https://doi.org/10.1098/rspl.1886.0081