Ardeadoris egretta

About this species

Ardeadoris egretta, the heron ardeadoris, is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae. It is the type species of the genus Ardeadoris.

Text from the Wikipedia article “Ardeadoris egretta”, 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: 38 records
February: 62 records
March: 60 records
April: 53 records
May: 63 records
June: 32 records
July: 49 records
August: 25 records
September: 23 records
October: 27 records
November: 40 records
December: 48 records

Depth and water temperature

Depth

Mostly recorded at 5–23 m · Deepest record: 1,014 m

0–10 m: 16 records
10–20 m: 32 records
20–30 m: 8 records
30–40 m: 1 records
40–50 m: 3 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 1 records

Water temperature

Recorded in surface water of 19–30 °C

18–20 °C: 2 records
20–22 °C: 0 records
22–24 °C: 2 records
24–26 °C: 38 records
26–28 °C: 16 records
28–30 °C: 88 records

Photos

(c) Kai Squires, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Gregor Bailar, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Ro Hill, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jay Paroline, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

Names in 2 more languages

Japanese: メレンゲウミウシ
Simplified Chinese: 白羽多彩海牛

Similar species

White-centred Rainbow Dorid
Ardeadoris angustolutea
Ardeadoris averni
Blood Spot Nudibranch
Ardeadoris cruenta
Ardeadoris pullata
Slender ceratosoma nudibranch
Ceratosoma gracillimum
Elongate Pantechnicon Dorid
Ceratosoma tenue

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).
204 open-data records from 1973 to 2026.
Species data updated October 26, 2026.