Oliver Perry Hay (22 May 1846 – 2 November 1930) was an American herpetologist, ichthyologist, and paleontologist.

Oliver Perry Hay
Born(1846-05-22)22 May 1846
Died2 November 1930(1930-11-02) (aged 84)
Scientific career
InstitutionsCarnegie Institution for Science

From 1894 to 1895 he worked at the Field Museum of Natural History as assistant curator of zoology where, despite his speciality in ichthyology, he worked in all non-ornithological fields of zoology. In 1912, Hay was appointed as a research associate at the Carnegie Institution for Science, and was given office space at the United States National Museum. There he did much work with the USNM's collections in vertebrate paleontology. He published extensively on fossil turtles and Pleistocene mammals. The catalogs that he constructed were a great aid in recording existing knowledge and became standard references. His papers from 1911 to 1930 are stored at the Smithsonian Institution.[1]

His son, William Perry Hay, was also a zoologist.


Below is a partial list of Hay's work.

  • Hay, Oliver Perry (1892). The Batrachians and Reptiles of Indiana. Original from the University of Michigan: Wm. B. Burford. p. 204 Pages.
  • Hay, Oliver Perry (1896). Fieldiana Zoology. V.1, No.4. "On some collections of fishes made in the Kankakee and Illinois". Chicago, IL: Field Museum of Natural History. pp. 85–97.
  • Hay, Oliver Perry (1902). Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey. 179. Govt. Print. Off. p. 868 pages. OCLC 681072233.
  • Hay, Oliver Perry (1923). The Pleistocene of North America and Its Vertebrated Animals from the States East of the Mississippi River and from the Canadian Provinces East of Longitude 95.̊. Carnegie Institution of Washington. p. 499 pages. OCLC 595145229.
  • Hay, Oliver Perry (1923). "Characteristics of sundry fossil vertebrates". Pan-American Geologist. 39: 101–120. OCLC 38855496.


  1. ^ Cox, William (February 8, 2006). "Record Unit 7188 Oliver Perry Hay Papers, 1911–1930" (web). Finding Aids to Personal Papers and Special Collections in the Smithsonian Institution Archives. Smithsonian Institution. Retrieved 2008-01-14.