When it is recorded
Jan1
Feb1
Mar57
Apr101
May67
Jun28
Jul64
Aug26
Sep124
Oct68
Nov43
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Gwynedd | Wales | 76 | |
| 2 | Powys | Wales | 64 | |
| 3 | Isle of Anglesey | Wales | 56 | |
| 4 | Conwy | Wales | 27 | |
| 5 | Worcestershire | England | 22 | |
| 6 | Carmarthenshire | Wales | 22 | |
| 7 | Ceredigion | Wales | 16 | |
| 8 | Pembrokeshire | Wales | 15 | |
| 9 | Somerset | England | 14 | |
| 10 | Devon | England | 13 | |
| 11 | Denbighshire | Wales | 13 | |
| 12 | Monmouthshire | Wales | 12 | |
| 13 | Dumfries and Galloway | Scotland | 11 | |
| 14 | Suffolk | England | 10 | |
| 15 | Aberdeenshire | Scotland | 10 |
129 England91 Scotland360 Wales2 Northern Ireland
Records per county (GADM level 2) and per nation; one record can count towards several areas. 51 counties in all.
About this species
- Records since 2000
- 606
- Peak month
- September
- Counties with records
- 51
- Scientific name
- Helobdella stagnalis
- Group
- Worms (annelids)
- NBN Atlas records since 2000
- 685
- Most recorded in
- Gwynedd, Powys, Isle of Anglesey
- Kingdom
- Animalia
- Phylum
- Annelida
- Class
- Clitellata
- Order
- Rhynchobdellida
- Family
- Glossiphoniidae
- Genus
- Helobdella
- Name with authority
- Helobdella stagnalis (Linnaeus, 1758)
- Described
- 1758
- Contributing datasets
- 18
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q5131900 · GBIF 2307936