#4722 · 🐌 snails, slugs & other molluscs

Red-rimmed Melania

🇳🇱 Slanke knobbelhoren ·Melanoides tuberculata

LCleast concern 🐌 Snails, slugs & other molluscs 📍 in the Netherlands

9 photos from iNaturalist (Creative Commons) · credits & licences

1. © David Elliott · CC BY 4.0
2. © Ken-ichi Ueda · CC BY 4.0
3. © River Ahlquist · CC BY 4.0
4. © Mike Quinn, San Marcos · CC BY-NC 4.0
5. © Alex Bairstow · CC BY-NC 4.0
6. © BJ Stacey · CC BY-NC 4.0
7. © Buchling · CC BY-SA 4.0
8. © sea-kangaroo · CC BY-NC-ND 4.0
9. © Steven Bodzin · CC BY 4.0

what is it?

The red-rimmed melania , scientific name Melanoides tuberculata , is a species of freshwater snail with an operculum, a parthenogenetic, aquatic gastropod mollusk in the family Thiaridae.

base stats

NL sightings 8iNaturalist, research grade
worldwide 3,955iNaturalist 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 8 times in the Netherlands on iNaturalist.
3,955 observations worldwide on iNaturalist.
Scientifically named by Otto Friedrich Müller in 1774 (252 years ago).

fact sheet

English: Red-rimmed Melania
Nederlands: Slanke knobbelhoren
scientific name: Melanoides tuberculata
class: Gastropoda
family: Thiaridae
IUCN Red List: LC · least concern
sightings in NL: 8
sightings in Europe: 59
sightings worldwide: 3,955
GBIF records in NL: 82
weight: —
length: —
lifespan: —
named: 1774 by Otto Friedrich Müller

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

Sources: iNaturalist taxon 209144, Wikidata Q1931948, GBIF 4362965, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.