Common grey sea slug

Aeolidia papillosa

Nudibranchs
IUCN: Not evaluated

Usual depth3–34 m
Water temperature-0–29 °C
Best monthsJanuary, May, and June
How commonOccasional

All species

About this species

Aeolidia papillosa, known as the common grey sea slug, is a species of nudibranch in the family Aeolidiidae.

Text from the Wikipedia article “Aeolidia papillosa”, 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: 23 records
March: 64 records
April: 70 records
May: 96 records
June: 118 records
July: 73 records
August: 80 records
September: 63 records
October: 42 records
November: 27 records
December: 24 records

Depth and water temperature

Depth

Mostly recorded at 3–34 m · Deepest record: 380 m

0–10 m: 138 records
10–20 m: 72 records
20–30 m: 35 records
30–40 m: 9 records
40–50 m: 10 records
50–60 m: 5 records
60–70 m: 1 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 1 records
100–110 m: 1 records
110+ m: 6 records

Water temperature

Recorded in surface water of -0–29 °C

-2–0 °C: 1 records
0–2 °C: 0 records
2–4 °C: 0 records
4–6 °C: 4 records
6–8 °C: 8 records
8–10 °C: 46 records
10–12 °C: 138 records
12–14 °C: 116 records
14–16 °C: 12 records
16–18 °C: 3 records
18–20 °C: 1 records
20–22 °C: 0 records
22–24 °C: 0 records
24–26 °C: 0 records
26–28 °C: 0 records
28–30 °C: 1 records

Names and classification

English: Common grey sea slug, Grey sea slug, Maned nudibranch, Papillose eolis, Plumed sea slug, Shag-rug aeolis, common grey sea slug, grey sea slug, Grey Sea Slug, maned nudibranch, papillose eolis, plumed sea slug, shag-rug aeolis, Shag-Rug Aeolis, Shag-rug Nudibranch

Names in 4 more languages

German: breitwartige Fadenschnecke, breitwarzige Fadenschnecke
Spanish: Eólido papiloso
French: eolidien à papilles, Eolidien à papilles, Éolidien à papilles, Eolis à papilles
Japanese: オオミノウミウシ

Other scientific names: Aeolidiella papillosa, Aeolis lesliana, Aeolis murrayana, Doris bodoensis, Doris vermigera, Eolis farinacea, Eolis obtusalis, Eolis papillosa, Eolis plumata, Eolis rosea, Limax papillosus

Similar species

White Anemone Eater
Bulbaeolidia alba
Indian nudibranch
Anteaeolidiella cacaotica
Multicoloured Anemone Eater
Baeolidia moebii
Baeolidia salaamica
Cerberilla annulata
Aeolidiopsis harrietae

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).
2,650 open-data records from 1881 to 2026.

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