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Species · Jellyfish, corals and anemones

Barrel jellyfish

Rhizostoma octopus

641Records since 2000
SeptemberPeak month
26Counties with records

When it is recorded

Jan6
Feb9
Mar17
Apr31
May26
Jun47
Jul47
Aug44
Sep367
Oct20
Nov21
Dec6

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

Where it is recorded

#CountyNationRecordsShare
1Gwynedd Wales23
2Pembrokeshire Wales23
3North Ayrshire Scotland19
4South Ayrshire Scotland17
5Swansea Wales14
6Dumfries and Galloway Scotland7
7Argyll and Bute Scotland6
8Carmarthenshire Wales6
9Cornwall England5
10Isle of Anglesey Wales5
11Cumbria England4
12Sefton England4
13Dorset England3
14Wirral England3
15Kent England2
50 England71 Scotland152 Wales6 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 26 counties in all.

About this species

Records since 2000
641
Peak month
September
Counties with records
26
Scientific name
Rhizostoma octopus
Group
Jellyfish, corals and anemones
NBN Atlas records since 2000
372
Kingdom
Animalia
Phylum
Cnidaria
Class
Scyphozoa
Order
Rhizostomeae
Family
Rhizostomatidae
Genus
Rhizostoma
Name with authority
Rhizostoma octopus (Gmelin, 1791)
Described
1791
Contributing datasets
3

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q2595392 · GBIF 10583426