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Species · Sea squirts

Star Ascidian, Star tunicate, Golden star sea-squirt

Botryllus schlosseri

6,456Records since 2000
AugustPeak month
45Counties with records

When it is recorded

Jan33
Feb42
Mar120
Apr247
May633
Jun898
Jul1,162
Aug1,319
Sep1,258
Oct482
Nov122
Dec61

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

Where it is recorded

#CountyNationRecordsShare
1Pembrokeshire Wales149
2Gwynedd Wales124
3Cornwall England119
4Highland Scotland92
5Isle of Anglesey Wales59
6Dorset England58
7Argyll and Bute Scotland53
8Ards and North Down Northern Ireland53
9Devon England48
10Causeway Coast and Glens Northern Ireland42
11Plymouth England39
12Shetland Islands —25
13Na h-Eileanan Siar Scotland23
14Aberdeenshire Scotland22
15Isles of Scilly England22
2,560 England1,194 Scotland1,694 Wales449 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 45 counties in all.

About this species

Records since 2000
6,456
Peak month
August
Counties with records
45
Scientific name
Botryllus schlosseri
Group
Sea squirts
NBN Atlas records since 2000
6,441
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Stolidobranchia
Family
Styelidae
Genus
Botryllus
Name with authority
Botryllus schlosseri (Pallas, 1766)
Described
1766
Contributing datasets
56

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q837241 · GBIF 5200757