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Species · Worms (annelids)

Square-tailed Worm

Eiseniella tetraedra

4,751Records since 2000
AprilPeak month
80Counties with records

When it is recorded

Jan62
Feb67
Mar755
Apr805
May783
Jun111
Jul165
Aug102
Sep640
Oct694
Nov481
Dec60

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Lincolnshire England746
2Northamptonshire England422
3Kent England276
4Gloucestershire England220
5North Yorkshire England210
6Dorset England195
7Norfolk England151
8Somerset England130
9Worcestershire England121
10Essex England113
11Suffolk England91
12Rutland England79
13Herefordshire, County of England68
14Cambridgeshire England65
15Surrey England56
4,494 England50 Scotland176 Wales4 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 80 counties in all.

About this species

Records since 2000
4,751
Peak month
April
Counties with records
80
Scientific name
Eiseniella tetraedra
Group
Worms (annelids)
NBN Atlas records since 2000
4,731
Kingdom
Animalia
Phylum
Annelida
Class
Clitellata
Order
Crassiclitellata
Family
Lumbricidae
Genus
Eiseniella
Name with authority
Eiseniella tetraedra (Savigny, 1826)
Described
1826
Contributing datasets
21

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q10683619 · GBIF 2307762