#4457 · 🦀 crabs & other crustaceans
Spurred Ridgeback
🇳🇱 Veenribbel ·Haplophthalmus danicus
🦀 Crabs & other crustaceans 📍 in the Netherlands
📍 6701 PB Wageningen, Netherlands
📍 1761 Anna Paulowna, Nederland
📍 1761 Anna Paulowna, Netherlands
📍 1761 Anna Paulowna, Nederland
📍 Anna Paulowna, Nederland
📍 1761 Anna Paulowna, Netherlands
📍 1771 Wieringerwerf, Nederland
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Christophe Quintin · CC BY-NC 4.0
- 2. © Gilles San Martin · CC BY-SA 4.0
- 3. © Jason M Crockwell · CC BY-NC-ND 4.0
- 4. 6701 PB Wageningen, Netherlands:© Pádraic Flood · CC BY-NC-SA 4.0
- 5. 1761 Anna Paulowna, Nederland:© 05gi02el03 · CC BY-NC 4.0
- 6. 1761 Anna Paulowna, Netherlands:© 05gi02el03 · CC BY-NC 4.0
- 7. 1761 Anna Paulowna, Nederland:© 05gi02el03 · CC BY-NC 4.0
- 8. Anna Paulowna, Nederland:© 05gi02el03 · CC BY-NC 4.0
- 9. 1761 Anna Paulowna, Netherlands:© 05gi02el03 · CC BY-NC 4.0
- 10. 1771 Wieringerwerf, Nederland:© 05gi02el03 · CC BY-NC 4.0
what is it?
Haplophthalmus danicus , the terrestrial cave isopod , is a species of woodlouse in the family Trichoniscidae. It is found in Europe & Northern Asia (excluding China), North America, and Southern Asia.
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
- Spotted 67 times in the Netherlands on iNaturalist: the #22 most seen of the crabs & other crustaceans in NL.
- 2,110 observations worldwide on iNaturalist.
- Scientifically named by Gustav Budde-Lund in 1880 (146 years ago).
fact sheet
- English
- Spurred Ridgeback
- Nederlands
- Veenribbel
- scientific name
- Haplophthalmus danicus
- class
- Malacostraca
- order
- Isopoda
- family
- Trichoniscidae
- sightings in NL
- 67
- sightings in Europe
- 739
- sightings worldwide
- 2,110
- GBIF records in NL
- 360
- weight
- —
- length
- —
- lifespan
- —
- named
- 1880 by Gustav Budde-Lund
relatives· Trichoniscidae
Sources: iNaturalist taxon 220920, Wikidata Q3971363, GBIF 2208212, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.