THE CENTER FOR NORTH AMERICAN HERPETOLOGY

Reptilia    Testudines    Emydidae  

Northwestern Pond Turtle
Actinemys marmorata (Baird and Girard, 1852)

SSAR 9th Edition Comments:
 There are no current SSAR comments for this taxon.

Range maps are based on curated specimens and provided gratis by CNAH.
(Created by Travis W. Taggart; Version: 2023.12.12.16.27.31)
Download GeoJSON polygon range file: - 0.06 MB

Province/State Distribution:
Canada: British Columbia
USA: California Nevada Oregon Washington

First instance(s) of published English names:
Western Pond Turtle (Actinemys marmorata: Cooper, James G., George Suckley, William Cooper, George Gibbs, Asa Gray, and John L. Le Conte. 1859. The natural history of Washington territory, with much relating to Minnesota, Nebraska, Kansas, Oregon, and California, between the thirty-sixth and forty-ninth parallels of latitude, being those parts of the final reports on the survey of the Northern Pacific railroad route, containing the climate and physical geography, with full catalogues and descriptions of the plants and animals collected from 1853 to 1857. Bailliere Bros., London, H. Bailliere;, New York, New York. pp.); California Terrapin (Chelopus marmoratus: Yarrow, Henry C. 1882. Check list of North American Reptilia and Batrachia with catalogue of specimens in U. S. National Museum. Bulletin of the United States National Museum (24):1-249); Pacific Terrapin (Clemmys marmorata: Van Denburgh, John. 1897. The reptiles of the Pacific Coast and Great Basin: An account of the species known to inhabit California, and Oregon, Washington, Idaho, and Nevada. Occasional Papers of the California Academy of Sciences 5():9-236); Pacific Pond Turtle (Clemmys marmorata: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.); Pacific Pond Turtle (Clemmys marmorata marmorata: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.);

Taxon Links:

  
Catalog of American Amphibians and Reptiles
  
The Reptile Database
  
NatureServe
  
iNaturalist
  
GenBank
  
USGS - Nonindigenous Aquatic Species Database

Selected References:
1852 Baird, Spencer F. and Charles Girard. Descriptions of new species of reptiles, collected by the U. S. Exploring Expedition under the command of Capt. Charles Wilkes, U. S. N., First Part including the species from the western part of America. Proceedings of the Academy of Natural Sciences, Philadelphia 6:174-177
1970 Bury, R. Bruce. Clemmys marmorata. Catalogue of American Amphibians and Reptiles (100):1-3
2002 Seidel, Michael E. Hemoglobin variation and comments on systematic relationships in the turtle family Emydidae. Copeia 2002(4):1118-1121
2014 Spinks, Phillip Q., Robert C. Thomson, and H. Bradley Shaffer. The advantages of going large: Genome-wide SNPs clarify the complex population history and systematics of the threatened western pond turtle. Molecular Ecology 23(9):2228-2241
2015 Ashton, Donald T., James B. Bettaso and Hartwell H. Welsh, Jr. Changes across a decade in size, growth, and body condition of Western Pond Turtle (Actinemys marmorata) populations on free-flowing and regulated forks of the Trinity River in northwest California. Copeia 103(3):621-633

THE CENTER FOR NORTH AMERICAN HERPETOLOGY — Accessed: Saturday 19 April 2025 21:44 CT