Orange-tipped sea squirt

About this species

Corella eumyota, the orange-tipped sea squirt, is a solitary tunicate in the family Corellidae. It is native to the Southern Ocean, the Antarctic, South America, southern Australia, New Zealand and South Africa, and has been introduced into European waters where it has become invasive.

Text from the Wikipedia article “Corella eumyota”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 87 records
February: 76 records
March: 115 records
April: 78 records
May: 96 records
June: 130 records
July: 219 records
August: 120 records
September: 159 records
October: 71 records
November: 56 records
December: 177 records

Depth and water temperature

Depth

Mostly recorded at 0–168 m · Deepest record: 1,610.3 m

0–10 m: 128 records
10–20 m: 32 records
20–30 m: 24 records
30–40 m: 6 records
40–50 m: 6 records
50–60 m: 10 records
60–70 m: 11 records
70–80 m: 8 records
80–90 m: 9 records
90–100 m: 11 records
100–110 m: 8 records
110+ m: 43 records

Water temperature

Recorded in surface water of -2–29 °C

-2–0 °C: 63 records
0–2 °C: 2 records
2–4 °C: 0 records
4–6 °C: 9 records
6–8 °C: 4 records
8–10 °C: 24 records
10–12 °C: 161 records
12–14 °C: 268 records
14–16 °C: 28 records
16–18 °C: 15 records
18–20 °C: 0 records
20–22 °C: 8 records
22–24 °C: 0 records
24–26 °C: 6 records
26–28 °C: 0 records
28–30 °C: 1 records

Photos

(c) Saryu Mae 前朝琉, some rights reserved (CC BY), uploaded by Saryu Mae 前朝琉 · CC BY · iNaturalist
(c) Gonzalo Bravo, some rights reserved (CC BY) · CC BY · iNaturalist
(c) wild_wind, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Javier, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Bernard Picton, some rights reserved (CC BY) · CC BY · iNaturalist
(c) John Hepburn, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Orange-tipped sea squirt, Sea clog, orange-tipped sea squirt, sea clog

Names in 2 more languages

Spanish: zapatilla de mar
French: Ascidie cartilagineuse

Other scientific names: Corella benedeni, Corella dohrni, Corella novarae

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
Conservation status as published by GBIF (IUCN Red List).
1,658 open-data records from 1888 to 2024.
Species data updated November 1, 2026.