Oriental Sea Slug
Chromodoris orientalis
- Usual depth3–18 m
- Water temperature13–27 °C
- Best monthsApril, May, and September
- How commonOccasional
Photo credit: (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Chromodoris orientalis is a species of colourful nudibranch in the family Chromodorididae. It is a white sea slug with irregularly spaced black spots and a yellow, orange, or brown ring around its whole body and on its gills.
Text from the Wikipedia article “Chromodoris orientalis”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 19 records
- February: 32 records
- March: 59 records
- April: 121 records
- May: 131 records
- June: 63 records
- July: 36 records
- August: 68 records
- September: 110 records
- October: 62 records
- November: 25 records
- December: 23 records
Depth and water temperature
Depth
Mostly recorded at 3–18 m · Deepest record: 27 m
Water temperature
Recorded in surface water of 13–27 °C
Photos
(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Jay Paroline, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Oriental Sea Slug, Spotted White Sea Slug
Names in 3 more languages
- Japanese
- シロウミウシ
- Korean
- 흰갯민숭달팽이
- Simplified Chinese
- 東方多彩海蛞蝓, 東洋多彩海蛞蝓
Similar species
Anna's ChromodorisChromodoris annae
Elisabeth's ChromodorisChromodoris elisabethina
Pyjama Rainbow DoridChromodoris lochi
Magnificent ChromodorisChromodoris magnifica
Striped pyjama nudibranchChromodoris quadricolor
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).
- 234 open-data records from 1990 to 2026.
- Species data updated November 1, 2026.
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