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#4654 · 🐌 snails, slugs & other molluscs

Carthusian Nun Snail

🇳🇱 Kleine karthuizerslak ·Monacha cartusiana

LCleast concern 🐌 Snails, slugs & other molluscs 📍 in the Netherlands
Carthusian Nun Snail, photo 1 of 10
1/10 © Nataël Adam · CC BY-NC 4.0

what is it?

Monacha cartusiana is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.

base stats

  • NL sightings 30iNaturalist, research grade
  • worldwide 7,481iNaturalist 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 30 times in the Netherlands on iNaturalist.
  • 7,481 observations worldwide on iNaturalist.
  • Scientifically named by Otto Friedrich Müller in 1774 (252 years ago).

fact sheet

English
Carthusian Nun Snail
Nederlands
Kleine karthuizerslak
scientific name
Monacha cartusiana
class
Gastropoda
order
Stylommatophora
family
Hygromiidae
IUCN Red List
LC · least concern
sightings in NL
30
sightings in Europe
3,096
sightings worldwide
7,481
GBIF records in NL
1,934
weight
—
length
—
lifespan
—
named
1774 by Otto Friedrich Müller

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

relatives· Hygromiidae

Sources: iNaturalist taxon 105970, Wikidata Q1734674, GBIF 5780449, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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