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#4730 · 🐌 snails, slugs & other molluscs

Leach's Bithynia

🇳🇱 Kleine diepslak ·Bithynia leachii

LCleast concern 🐌 Snails, slugs & other molluscs 📍 in the Netherlands
Leach's Bithynia, photo 1 of 10
1/10 © Michal Maňas · CC BY 4.0

what is it?

Bithynia leachii is species of small freshwater snail with an operculum, an aquatic prosobranch gastropod mollusk in the family Bithyniidae.

base stats

  • NL sightings 7iNaturalist, research grade
  • worldwide 122iNaturalist observations
  • threat LCleast concern

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 7 times in the Netherlands on iNaturalist.
  • 122 observations worldwide on iNaturalist.
  • Scientifically named by Revett Sheppard in 1823 (203 years ago).

fact sheet

English
Leach's Bithynia
Nederlands
Kleine diepslak
scientific name
Bithynia leachii
class
Gastropoda
order
Littorinimorpha
family
Bithyniidae
IUCN Red List
LC · least concern
sightings in NL
7
sightings in Europe
45
sightings worldwide
122
GBIF records in NL
1,293
weight
—
length
—
lifespan
—
named
1823 by Revett Sheppard

IUCN in Dutch: niet bedreigd. Blank means the sources don't say.

relatives· Bithyniidae

Sources: iNaturalist taxon 95785, Wikidata Q3202448, GBIF 5778074, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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