Adults are from 9.0 to 12.5 cm in length. Their bodies are bluish-brown in color, with a purple stripe along the back. Thin, dark brown stripes occur between and around the eyes, and also sometimes on the tail. Four clawless toes are on each foot. The tail is longer than the body. Males are typically smaller than females.[4]
The species is known for surviving deep freezes (as low as −45 °C). In some cases, they have been known to remain frozen in permafrost for years, and upon thawing, walking off.[5] They accomplish this by reducing to a fourth of their body weight through water loss and liver shrinkage, and by increasing the concentration of glycerol in their body.[6]
Within its extensive range, the habitat of the Siberian newt is wet conifer, mixed deciduous forests in the taiga and riparian grooves in the tundra and forest steppe. They can be found near ephemeral or permanent pools, wetlands, sedge meadows, off near oxbow lakes.[8]
Their breeding season occur during May or beginning of June, in pools of water.[9] A single egg sac contains 50-80 eggs on average, with a female typically laying up to 240 eggs in a season. The light-brown eggs hatch three to four weeks after being laid, releasing larval salamanders of 11–12 mm in length.
^"합수도룡뇽살이터". Encyclopedia of Korean National Culture. Retrieved 2007-06-11.
^Hasumi, M., & Borkin, L. J. (2012). Age and body size of Salamandrella keyserlingii (Caudata: Hynobiidae): a difference in altitudes, latitudes, and temperatures. Organisms Diversity & Evolution, 12(2), 167–181. https://doi.org/10.1007/s13127-012-0091-5
^Shekhovtsov, S. V., Bulakhova, N. A., Tsentalovich, Y. P., Zelentsova, E. A., Meshcheryakova, E. N., Poluboyarova, T. V., & Berman, D. I. (2021). Biochemical response to freezing in the siberian salamander salamandrella keyserlingii. Biology (Basel, Switzerland), 10(11), 1172-. https://doi.org/10.3390/biology10111172
^Hasumi, M., & Borkin, L. J. (2012). Age and body size of Salamandrella keyserlingii (Caudata: Hynobiidae): a difference in altitudes, latitudes, and temperatures. Organisms Diversity & Evolution, 12(2), 167–181. https://doi.org/10.1007/s13127-012-0091-5
^Hasumi, M., & Borkin, L. J. (2012). Age and body size of Salamandrella keyserlingii (Caudata: Hynobiidae): a difference in altitudes, latitudes, and temperatures. Organisms Diversity & Evolution, 12(2), 167–181. https://doi.org/10.1007/s13127-012-0091-5
^Hasumi, M., & Borkin, L. J. (2012). Age and body size of Salamandrella keyserlingii (Caudata: Hynobiidae): a difference in altitudes, latitudes, and temperatures. Organisms Diversity & Evolution, 12(2), 167–181. https://doi.org/10.1007/s13127-012-0091-5
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