
Photo credit: no rights reserved · CC0 1.0 · iNaturalist
About this species
Gymnodoris arnoldi is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Polyceridae. It was first described in 1957.
Text from the Wikipedia article “Gymnodoris arnoldi”, 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: 3 records
- February: 1 records
- March: 6 records
- April: 4 records
- May: 0 records
- June: 2 records
- July: 9 records
- August: 4 records
- September: 0 records
- October: 7 records
- November: 1 records
- December: 2 records
Depth and water temperature
Water temperature
Recorded in surface water of 16°C
Names and classification
Other scientific names: Nembrotha arnoldi
Similar species
White Gobble DoridGymnodoris alba

Toadstool Gobble DoridGymnodoris aurita
Polka-dot Gobble DoridGymnodoris ceylonica
Hannibal Gobble DoridGymnodoris citrina

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).
- 9 open-data records from 1955 to 2008.
- Species data updated November 3, 2026.
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