#0505 · 🦊 mammals
Long-tailed Ground Squirrel
Urocitellus undulatus
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Dina Nesterkova · CC BY-NC 4.0
- 2. © seasav · CC BY-NC-ND 4.0
- 3. © Евгения Мусиенко · CC BY-NC-ND 4.0
- 4. © Евгения Мусиенко · CC BY-NC-ND 4.0
- 5. © Amaël Borzée · CC BY-NC 4.0
- 6. © Amaël Borzée · CC BY-NC 4.0
- 7. © Евгения Мусиенко · CC BY-NC-ND 4.0
- 8. © Amaël Borzée · CC BY-NC 4.0
- 9. © Евгения Мусиенко · CC BY-NC-ND 4.0
- 10. © Konstantin Malanchev · CC BY 4.0
what is it?
The long-tailed ground squirrel or Eversmann's souslik ( Urocitellus undulatus ) is a species of rodent in the squirrel family Sciuridae. It is found in China, Kazakhstan, Mongolia, and Russia.
base stats
Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).
fun facts
- No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
- 1,835 observations worldwide on iNaturalist.
- Scientifically named by Peter Simon Pallas in 1778 (248 years ago).
fact sheet
- English
- Long-tailed Ground Squirrel
- scientific name
- Urocitellus undulatus
- class
- Mammalia
- order
- Rodentia
- family
- Sciuridae
- IUCN Red List
- LC · least concern
- sightings in NL
- 0
- sightings worldwide
- 1,835
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1778 by Peter Simon Pallas
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Sciuridae
#0008 📷 10Eurasian Red Squirrel
🇳🇱 Rode eekhoorn
Sciurus vulgaris
LC 👀 712 in NL
#0033 📷 8Siberian Chipmunk
🇳🇱 Koreaanse Grondeekhoorn
Eutamias sibiricus
LC 👀 26 in NL
#0075 📷 10Eastern Gray Squirrel
🇳🇱 Noord-Amerikaanse grijze eekhoorn
Sciurus carolinensis
LC 🌍 418.6k seen
#0199 📷 9Eastern Fox Squirrel
🇳🇱 Amerikaanse voseekhoorn
Sciurus niger
LC 🌍 173.4k seen
#0078 📷 10Eastern Chipmunk
🇳🇱 Oostelijke Wangzakeekhoorn
Tamias striatus
LC 🌍 112.8k seen
#0079 📷 10American Red Squirrel
🇳🇱 Amerikaanse Rode Eekhoorn
Tamiasciurus hudsonicus
LC 🌍 103.4k seen
#0203 📷 10Groundhog
🇳🇱 Bosmarmot
Marmota monax
LC 🌍 67.1k seen
#0204 📷 7California Ground Squirrel
🇳🇱 Californische Grondeekhoorn
Otospermophilus beecheyi
LC 🌍 65.1k seen
Sources: iNaturalist taxon 180004, Wikidata Q21730559, GBIF 7522906, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.