Portenko's shrew
Sorex portenkoi Stroganov, 1956
The portenko's shrew (Sorex portenkoi) is a species in the family Soricidae, order Eulipotyphla. Recorded adults weigh 4.5 g to 5.2 g and live up to 1.63 years. Its IUCN Red List status is Data Deficient.
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Quick facts about the portenko's shrew
- Weight
- 4.5 g – 5.2 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 1.63 yearssrc for Lifespan
- Diet
- Invertivoresrc for Diet
- Longest recorded lifespan
- 2.5 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 18.1 dayssrc for Gestation
- Young per litter or clutch
- 6.5src for Young per litter or clutch
- Age at maturity
- 7.96 months – 12 monthssrc for Age at maturity
- Litters or clutches a year
- 1.9src for Litters or clutches a year
- Active
- Day and night (cathemeral)src for Active
- Lifestyle
- Terrestrialsrc for Lifestyle
- Conservation status
- Data Deficient (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the portenko's shrew live?
Not recorded
What is the portenko's shrew?
Portenko's shrew (Sorex portenkoi) is a species of mammal in the family Soricidae that is endemic to Russia.
From the Wikipedia article “Portenko's shrew” (en.wikipedia.org/w/index.php?title=Portenko%27s_shrew&oldid=1314564412), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the portenko's shrew endangered?
The portenko's shrew is listed as Data Deficient on the IUCN Red List: it has too little data for its risk to be assessed.
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Data Deficient species. What the categories mean.
How is the portenko's shrew classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderEulipotyphla
- familySoricidae
- genusSorex
- SpeciesSorex portenkoi Stroganov, 1956
Other names and names in other languages (5)
- Portenko’s shrewEnglish
- rejsek PortenkůvCzech
- beringinpäästäinenFinnish
- ポルテンコトガリネズミJapanese
- ryjówka czukockaPolish
Relatives of the portenko's shrew
Other species in the same genus Sorex.

Eurasian pygmy shrew
Sorex minutus

Common shrew
Sorex araneus

Laxmann's shrew
Sorex caecutiens

Eurasian least shrew
Sorex minutissimus

Alpine shrew
Sorex alpinus

Taiga shrew
Sorex isodon
ComparePortenko's shrew vs Eurasian pygmy shrewPortenko's shrew vs Common shrewPortenko's shrew vs Laxmann's shrewPortenko's shrew vs Eurasian least shrew
Common questions
Answered only where our data holds the answer.
How big is the portenko's shrew?
An adult portenko's shrew weighs 4.5 g – 5.2 g, according to values recorded on Wikidata.
Is the portenko's shrew endangered?
The portenko's shrew is listed as Data Deficient on the IUCN Red List, meaning it has too little data for its risk to be assessed.
How long does the portenko's shrew live?
The portenko's shrew has a recorded lifespan of 1.63 years.
How long is the portenko's shrew pregnant?
The recorded gestation period is 18.1 days.
What kind of animal is the portenko's shrew?
The portenko's shrew (Sorex portenkoi) belongs to the family Soricidae in the order Eulipotyphla.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Portenko's shrew (Sorex portenkoi). Retrieved from https://creaturedata.com/animals/portenkos-shrew
“Portenko's shrew (Sorex portenkoi).” CreatureData, 2026, https://creaturedata.com/animals/portenkos-shrew.
@misc{portenkos_shrew_2026,
title = {Portenko's shrew (Sorex portenkoi)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/portenkos-shrew},
note = {Data as of 2026-11-11}
}