Iridescent nudibranch

Notobryon wardi

Nudibranchs
IUCN: Not evaluated

Usual depth5–26 m
Water temperature17–29 °C
Best monthsMarch, April, and May
How commonRare

About this species

Notobryon wardi, the iridescent nudibranch, is a species of scyllid nudibranch, and is found in South Africa. It is a marine gastropod mollusc in the family Scyllaeidae.

Text from the Wikipedia article “Notobryon wardi”, 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: 4 records
February: 11 records
March: 13 records
April: 13 records
May: 16 records
June: 10 records
July: 12 records
August: 8 records
September: 4 records
October: 4 records
November: 12 records
December: 7 records

Depth and water temperature

Depth

Mostly recorded at 5–26 m · Deepest record: 109.7 m

0–10 m: 20 records
10–20 m: 25 records
20–30 m: 6 records
30–40 m: 2 records
40–50 m: 0 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: 1 records

Water temperature

Recorded in surface water of 17–29 °C

16–18 °C: 1 records
18–20 °C: 10 records
20–22 °C: 3 records
22–24 °C: 6 records
24–26 °C: 11 records
26–28 °C: 13 records
28–30 °C: 47 records

Names and classification

English: Iridescent nudibranch, Sandy Grassdragon, iridescent nudibranch

Names in 3 more languages

Japanese: ユメウミウシ
Korean: 사슴갯민숭이
Simplified Chinese: 瓦氏背苔海蛞蝓

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).
117 open-data records from 1981 to 2026.

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