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Species · Molluscs

New Zealand Mudsnail

Potamopyrgus antipodarum

44,337Records since 2000
SeptemberPeak month
120Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan393
Feb314
Mar4,713
Apr6,803
May7,544
Jun1,196
Jul1,710
Aug1,680
Sep7,732
Oct7,247
Nov4,297
Dec659

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

Where it is recorded

#CountyNationRecordsShare
1Lincolnshire England3,226
2North Yorkshire England2,112
3Northamptonshire England1,793
4Cumbria England1,548
5Cambridgeshire England1,460
6Norfolk England1,236
7Nottinghamshire England1,054
8Worcestershire England1,007
9Kent England951
10Suffolk England931
11Essex England882
12Gloucestershire England873
13East Riding of Yorkshire England756
14Devon England738
15Somerset England692
39,205 England1,065 Scotland3,940 Wales22 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 120 counties in all.

About this species

Records since 2000
44,337
Peak month
September
Counties with records
120
IUCN Red List
Least Concern
Scientific name
Potamopyrgus antipodarum
Group
Molluscs
NBN Atlas records since 2000
44,197
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Littorinimorpha
Family
Tateidae
Genus
Potamopyrgus
Name with authority
Potamopyrgus antipodarum (J.E.Gray, 1843)
Described
1843
Contributing datasets
48

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q1844769 · GBIF 5192470