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Species · Jellyfish, corals and anemones

Sea Thread Hydroid

Obelia dichotoma

824Records since 2000
JulyPeak month
15Counties with records

When it is recorded

Jan36
Feb2
Mar14
Apr22
May80
Jun87
Jul245
Aug169
Sep79
Oct40
Nov19
Dec3

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

Where it is recorded

#CountyNationRecordsShare
1Highland Scotland13
2Argyll and Bute Scotland12
3Ceredigion Wales10
4Pembrokeshire Wales9
5Cornwall England3
6Conwy Wales3
7North Ayrshire Scotland2
8Ards and North Down Northern Ireland2
9Plymouth England2
10Cambridgeshire England1
11Essex England1
12Na h-Eileanan Siar Scotland1
13Isle of Anglesey Wales1
14Causeway Coast and Glens Northern Ireland1
15Swansea Wales1
159 England128 Scotland74 Wales48 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 15 counties in all.

About this species

Records since 2000
824
Peak month
July
Counties with records
15
Scientific name
Obelia dichotoma
Group
Jellyfish, corals and anemones
NBN Atlas records since 2000
426
Kingdom
Animalia
Phylum
Cnidaria
Class
Hydrozoa
Order
Leptothecata
Family
Campanulariidae
Genus
Obelia
Name with authority
Obelia dichotoma (Linnaeus, 1758)
Described
1758
Contributing datasets
28

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q2198492 · GBIF 5185976