Evidence found
2,257 records across 32 countries and territories, 1869–2026.
Radix auricularia · GBIF taxon key 5189888
Where has the Big-Eared Radix been recorded?
Radix auricularia occurrence evidence comes from 2,257 records in 32 countries and territories, from 1869 to 2026. Most records come from South Korea.
- 2,257 records
- 32 places
- 105 years recorded
- Gastropoda class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-23. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: April.
9 months reach at least 10% of the peak facet count.
What this does not mean
repeated describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: April. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Records over time
18692026
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where Big-Eared Radix has been recorded
The countries below show where occurrence evidence exists for Big-Eared Radix. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
| Place | Records | Share |
|---|---|---|
| South Korea | 1,008 | |
| Sweden | 322 | |
| United States | 241 | |
| Uzbekistan | 235 | |
| Germany | 190 | |
| Austria | 68 | |
| United Kingdom | 37 | |
| Luxembourg | 37 | |
| Belgium | 33 | |
| Switzerland | 19 | |
| Canada | 16 | |
| Netherlands | 12 | |
| Spain | 4 | |
| France | 4 | |
| Italy | 4 | |
| Afghanistan | 3 | |
| New Zealand | 3 | |
| Belarus | 2 | |
| Czechia | 2 | |
| Ireland | 2 | |
| Lithuania | 2 | |
| Taiwan | 2 | |
| Ukraine | 2 | |
| China | 1 | |
| Denmark | 1 | |
| Greece | 1 | |
| Iraq | 1 | |
| Japan | 1 | |
| Latvia | 1 | |
| North Macedonia | 1 | |
| Poland | 1 | |
| Russia | 1 |
Related animals
Others in the family Lymnaeidae.
Record pattern: repeated
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.