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Species · Molluscs

Tiny risso snail

Rissoa parva

2,312Records since 2000
SeptemberPeak month
29Counties with records

When it is recorded

Jan6
Feb54
Mar157
Apr151
May247
Jun218
Jul299
Aug408
Sep504
Oct166
Nov51
Dec31

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

Where it is recorded

#CountyNationRecordsShare
1Ards and North Down Northern Ireland65
2Pembrokeshire Wales42
3Newry, Mourne and Down Northern Ireland28
4Isles of Scilly England26
5Aberdeenshire Scotland20
6Orkney Islands Scotland20
7Causeway Coast and Glens Northern Ireland17
8Ceredigion Wales16
9Norfolk England13
10Argyll and Bute Scotland13
11Highland Scotland11
12Mid and East Antrim Northern Ireland10
13Gwynedd Wales9
14Dorset England8
15Cornwall England8
628 England411 Scotland146 Wales410 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 29 counties in all.

About this species

Records since 2000
2,312
Peak month
September
Counties with records
29
Scientific name
Rissoa parva
Group
Molluscs
NBN Atlas records since 2000
1,734
Most recorded in
Ards and North Down
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Littorinimorpha
Family
Rissoidae
Genus
Rissoa
Name with authority
Rissoa parva (da Costa, 1778)
Described
1778
Contributing datasets
53

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q3170907 · GBIF 5192339