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#4726 · 🐌 snails, slugs & other molluscs

American lake limpet

🇳🇱 Smurfslak ·Ferrissia californica

LCleast concern 🐌 Snails, slugs & other molluscs 📍 in the Netherlands
10 photos from iNaturalist (Creative Commons) · credits & licences
  1. 1. © Alexander Mrkvicka · CC BY-SA 4.0
  2. 2. © Howard Horne · CC BY-NC 4.0
  3. 3. © Howard Horne · CC BY-NC 4.0
  4. 4. © Mark Apgar · CC BY 4.0
  5. 5. © Russell Pfau · CC BY-NC 4.0
  6. 6. Galloway, NJ, USA:© davidenrique · CC BY-NC-SA 4.0
  7. 7. Cdad. Universitaria, Moncloa - Aravaca, Madrid, España:© Héctor García-Romeu Núñez · CC BY-NC 4.0
  8. 8. Galloway, NJ, USA:© davidenrique · CC BY-NC-SA 4.0
  9. 9. W 81st S, Idaho Falls, ID, US:© olsobren · CC BY-NC 4.0
  10. 10. Oost, Utrecht, Nederland:© Jurriën de Vries · CC BY-NC 4.0
American lake limpet, photo 1 of 10
1/10 © Alexander Mrkvicka · CC BY-SA 4.0

what is it?

Ferrissia californica is a species of small freshwater limpet, an aquatic gastropod mollusk in the family Planorbidae.

base stats

  • NL sightings 8iNaturalist, research grade
  • worldwide 163iNaturalist 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.
  • 163 observations worldwide on iNaturalist.

fact sheet

English
American lake limpet
Nederlands
Smurfslak
scientific name
Ferrissia californica
class
Gastropoda
family
Planorbidae
IUCN Red List
LC · least concern
sightings in NL
8
sightings in Europe
47
sightings worldwide
163
GBIF records in NL
746
weight
—
length
—
lifespan
—

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

relatives· Planorbidae

Sources: iNaturalist taxon 1151111, Wikidata Q106294185, GBIF 9520065, Wikipedia (EN). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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