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#4601 · 🐌 snails, slugs & other molluscs

Otter shell

🇳🇱 Otterschelp ·Lutraria lutraria

🐌 Snails, slugs & other molluscs 📍 in the Netherlands
Otter shell, photo 1 of 10
1/10 © Jan Johan ter Poorten · CC BY-SA 4.0

what is it?

Lutraria lutraria is a species of large marine bivalve mollusc in the family Mactridae. Its common names include the otter shell and the common otter shell . It occurs in coastal regions of the north east Atlantic Ocean where it lives buried in the sand.

base stats

  • NL sightings 132iNaturalist, research grade
  • worldwide 1,591iNaturalist observations

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 132 times in the Netherlands on iNaturalist: the #33 most seen of the snails, slugs & other molluscs in NL.
  • 1,591 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Otter shell
Nederlands
Otterschelp
scientific name
Lutraria lutraria
class
Bivalvia
order
Venerida
family
Mactridae
sightings in NL
132
sightings in Europe
943
sightings worldwide
1,591
GBIF records in NL
40,776
weight
—
length
—
lifespan
—
named
1758

relatives· Mactridae

Sources: iNaturalist taxon 469345, Wikidata Q2472974, GBIF 2286416, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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