#4524 · 🦀 crabs & other crustaceans
Ratzeburg's Woodlouse
Trachelipus ratzeburgii
🦀 Crabs & other crustaceans 📍 in Europe, not in NL
📍 73640 Sainte-Foy-Tarentaise, France
📍 Donji Kućan, Croatia
📍 Powiat hajnowski, Polska
📍 Kłodzko County, Poland
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Marino Linić · CC0
- 2. © Samuel Messner · CC BY-NC 4.0
- 3. © carnifex · CC BY 4.0
- 4. © carnifex · CC BY 4.0
- 5. © carnifex · CC BY 4.0
- 6. © carnifex · CC BY 4.0
- 7. 73640 Sainte-Foy-Tarentaise, France:© micah · CC BY-NC 4.0
- 8. Donji Kućan, Croatia:© Ivica Pakrac · CC BY-NC 4.0
- 9. Powiat hajnowski, Polska:© Paweł Śledziński · CC BY-NC 4.0
- 10. Kłodzko County, Poland:© Filip Vyskočil · CC BY-NC 4.0
what is it?
Trachelipus ratzeburgii is a species of woodlouse in the genus Trachelipus belonging to the family Trachelipodidae that can be found in Austria, the Baltic states, Belgium, the Netherlands, the Czech Republic, France, Germany, Hungary, Italy, Poland, Romania, Slovakia, Switzerland and Scandinavia (except for Finland).
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.
- 1,667 observations worldwide on iNaturalist.
- Scientifically named by Johann Friedrich von Brandt in 1833 (193 years ago).
fact sheet
- English
- Ratzeburg's Woodlouse
- scientific name
- Trachelipus ratzeburgii
- class
- Malacostraca
- order
- Isopoda
- family
- Trachelipodidae
- sightings in NL
- 0
- sightings in Europe
- 1,423
- sightings worldwide
- 1,667
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1833 by Johann Friedrich von Brandt
relatives· Trachelipodidae
Sources: iNaturalist taxon 544095, Wikidata Q130446, GBIF 2209068, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.