#4619 · 🐌 snails, slugs & other molluscs
Mud Bithynia
🇳🇱 Grote diepslak ·Bithynia tentaculata
8 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Bithynia tentaculata , common names the mud bithynia or common bithynia , or faucet snail is a relatively small species of freshwater snail with gills and an operculum, an aquatic prosobranch gastropod mollusk in the family Bithyniidae.
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 77 times in the Netherlands on iNaturalist.
- 2,147 observations worldwide on iNaturalist.
- Scientifically named by William Elford Leach in 1818 (208 years ago).
fact sheet
- English
- Mud Bithynia
- Nederlands
- Grote diepslak
- scientific name
- Bithynia tentaculata
- class
- Gastropoda
- order
- Littorinimorpha
- family
- Bithyniidae
- IUCN Red List
- LC · least concern
- sightings in NL
- 77
- sightings in Europe
- 1,391
- sightings worldwide
- 2,147
- GBIF records in NL
- 24,778
- weight
- —
- length
- —
- lifespan
- —
- named
- 1818 by William Elford Leach
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Bithyniidae
Sources: iNaturalist taxon 127189, Wikidata Q835427, GBIF 2299854, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.