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Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update: December 31st, 2022.

Taxonomy of the family Emydidae
Bibliography of the genus Actinemys
Biodiversity of the family Emydidae


Pacific Pond Turtles

Pazifische Sumpfschildkröten, Pazifik-Wasserschildkröten

Vestamerikanske Sumpskildpadder

1857 Actinemys Agassiz (type species: Emys marmorata Baird & Girard 1852)

Contents: 2 species, of which 1 (50.0%) is endemic.
Endemism: 0% 100%
Remarks: Revalidated as a separate genus by Holman & Fritz (2001). Also see Burke, Leuteritz & Wolf (1996). Spinks, Thomson, McCartney-Melstad & Shaffer (2016) suggested to include the genera Actinemys and Emydoidea in Emys, thus returning to a previously used taxonomy.
Distribution: Mexico (Baja California Norte), USA (California, Nevada, Oregon, Washington).

Actinemys marmorata

Northern Pacific Pond Turtle, Northern Western Pond Turtle

Nordwestliche Pazifik-Wasserschildkröte

Nordlig Vestamerikansk Sumpskildpadde

1852 Emys marmorata Baird & Girard
Actinemys marmorata Agassiz 1857
Clemmys marmorata Strauch 1862
Geoclemmys marmorata Gray 1870
Chelopus marmoratus Cope 1875
1854 Emys nigra Hallowell (Fritz & Havas 2006)
1862 Clemmys wosnessenskyi Strauch (Fritz & Havas 2006)
Geoclemmys wosnessenskyi Gray 1872
1903 Clemmys hesperia Hay (Fritz & Havas 2006)

Remarks: Previously included pallida. Extirpated in Canada (British Columbia, incl. Vancouver Island). A single record from Idaho may represent an introduction (Bury & Germano 2008).
Extinct in: Canada (British Columbia).
Introduced to: Australia (New South Wales).
Distribution: USA (California, Nevada, Oregon, Washington).

Actinemys marmorata
© Rune Midtgaard

Actinemys pallida

Southern Pacific Pond Turtle, Southern Western Pond Turtle

Südwestliche Pazifik-Wasserschildkröte

Sydlig Vestamerikansk Sumpskildpadde

1945 Clemmys marmorata pallida Seeliger
Actinemys marmorata pallida Bour 2002
Emys marmorata pallida Artner 2003
Actinemys pallida Rhodin, Iverson, Bour, Fritz, Georges, Shaffer & Dijk 2017

Remarks: Previously regarded as a subspecies of marmorata.
Distribution: Mexico (Baja California Norte), USA (California).