skip to content

#4633 · 🐌 snails, slugs & other molluscs

Great Piddock

🇳🇱 Ruwe boormossel ·Zirfaea crispata

🐌 Snails, slugs & other molluscs 📍 in the Netherlands
Great Piddock, photo 1 of 10
1/10 © Femorale · CC BY-NC 4.0

base stats

  • NL sightings 53iNaturalist, research grade
  • worldwide 384iNaturalist 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 53 times in the Netherlands on iNaturalist.
  • 384 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Great Piddock
Nederlands
Ruwe boormossel
scientific name
Zirfaea crispata
class
Bivalvia
order
Myida
family
Pholadidae
sightings in NL
53
sightings in Europe
165
sightings worldwide
384
GBIF records in NL
3,016
weight
—
length
—
lifespan
—
named
1758

relatives· Pholadidae

Sources: iNaturalist taxon 193982, Wikidata Q1786849, GBIF 2288788, Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

stan runge e1fcd4f source