List of amphibians and reptiles of Oregon

It is found from southeastern Alaska on May Island, through Washington and Oregon south to the mouth of the Gulala River, Sonoma County, California.

Analysis of fossil records, genetics, and biogeography suggest that A. macrodactylum and A. laterale are descended from a common ancestor that gained access to the western Cordillera with the loss of the mid-continental seaway toward the Paleocene.

The long-toed salamander hibernates during the cold winter months, surviving on protein energy reserves stored in the skin and tail.

It is brown above with patches of yellowish-tan covering clusters of white skin glands, its belly is dark bluish-gray.

The coastal giant salamander is endemic to the Pacific Northwest, found in Northern California, Oregon, Washington, and southern British Columbia.

[14] Its natural habitat is temperate forests of moist Douglas fir, maple, and red cedar woodlands in Oregon, to 3,000 feet (910 m).

However, in that year Nielson, Lohman, and Sullivan published evidence in Evolution that promoted the Rocky Mountain tailed frog (Ascaphus montanus) from a subspecies to its own species.

The natural habitats of the Great Basin spadefoot include pinyon-juniper, ponderosa pine, and high elevation spruce-fir forests, semidesert shrubland, sagebrush flats, temperate grasslands, and deserts.

Their range extends throughout all of Nevada and into most of Utah; they are also present in small areas in California, Arizona, Colorado, and Wyoming.

Its color ranges from a dark, olive green to light brown with irregularly-shaped black spots on its back and legs (rendering its name).

Individuals can be distinguished from other Rana species by their shorter back legs, narrow snout and upturned eyes.

It varies from green to brown in dorsal colour with large dark circular spots on its back, sides and legs.

They are found in permanent ponds, swamps, marshes and slow moving streams throughout forest, open and urban areas.

[30] As a member of the genus Rana, this species is considered a true frog, with characteristic smooth skin and a narrow waist.

It lives in slow-moving fresh waters, from southern Canada to Louisiana and northern Mexico, and from the Atlantic to the Pacific.

It is very similar to the common collared lizard (C. collaris) in shape and size, but it lacks the bright extravagant colors of that species.

The epithet wislizenii is in honor of the German-American surgeon and naturalist Frederick Adolph Wislizenus, who caught the first specimen near Santa Fe, New Mexico.

It is a common but secretive species whose range extends throughout Washington, Oregon, Nevada, Utah, and Wyoming and into western Montana and northern Arizona.

It is found in grassland, broken chaparral, sagebrush, woodland, coniferous forest, and farmland, and occupies elevations from sea level to 10,800 ft.[15] They generally avoid the harsh desert.

The specific epithet, stansburiana, is in honor of Captain Howard Stansbury of the United States Corps of Topographical Engineers, who collected the first specimens while leading the 1849-1851 expedition to explore and survey the Great Salt Lake of Utah.

[49] The western whiptail (Aspidoscelis tigris (Baird and Girard, 1852)) is a small lizard (adults average 25 to 35 cm - about a foot - in length) that ranges throughout most of the southwestern United States.

It lives in a wide variety of habitats, including deserts and semiarid shrublands, usually in areas with sparse vegetation; also woodland, open dry forest, and riparian growth.

Since it does not migrate, a number of forms have developed in different regions, several of which have been given sub-specific names - for example the California whiptail, Aspidoscelis tigris munda.

They are primarily found throughout the United States, east of the Rocky Mountains, but they range north into Canada, and south into Mexico, Guatemala and Belize.

Racers typically grow to around 3+1⁄2 foot (107 cm) long, but some subspecies are capable of attaining lengths of 6 feet (1.8 metres).

They are slightly venomous but their non-aggressive nature and small rear-facing fangs pose little threat to humans who wish to handle them.

They are best known for their unique defense posture of curling up their tails exposing their bright red-orange posterior ventral surface when threatened.

The common kingsnake (Lampropeltis getula) is a harmless colubrid species found in the United States and Mexico.

In the western United States the range also extends outside of the Great Basin into the Rogue River Valley in southwestern Oregon and northern California.

Most garter snakes have a pattern of yellow stripes on a brown background and their average length is about 1 to 1.5 meters (3.3 to 4.9 ft).