Slender ceratosoma nudibranch
Ceratosoma gracillimum
- Usual depth4–15 m
- Water temperature24–30 °C
- Best monthsApril, May, and December
- How commonOccasional
Photo credit: (c) Dan Schofield, some rights reserved (CC BY), uploaded by Dan Schofield · CC BY · iNaturalist
About this species
Ceratosoma gracillimum is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Text from the Wikipedia article “Ceratosoma gracillimum”, 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: 71 records
- February: 75 records
- March: 69 records
- April: 115 records
- May: 118 records
- June: 50 records
- July: 60 records
- August: 67 records
- September: 74 records
- October: 80 records
- November: 74 records
- December: 84 records
Depth and water temperature
Depth
Mostly recorded at 4–15 m · Deepest record: 20 m
Water temperature
Recorded in surface water of 24–30 °C
Photos
(c) Dan Schofield, some rights reserved (CC BY), uploaded by Dan Schofield · CC BY · iNaturalist 
(c) Dan Schofield, some rights reserved (CC BY), uploaded by Dan Schofield · CC BY · iNaturalist 
(c) Dan Schofield, some rights reserved (CC BY), uploaded by Dan Schofield · CC BY · iNaturalist 
(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Pauline Walsh Jacobson, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Slender ceratosoma nudibranch
Names in 2 more languages
- Japanese
- ミナミニシキウミウシ
- Simplified Chinese
- 裸翼多彩海蛞蝓
Similar species
Elongate Pantechnicon DoridCeratosoma tenue
T-bar Pantechnicon DoridCeratosoma trilobatum
Anna's ChromodorisChromodoris annae
Elisabeth's ChromodorisChromodoris elisabethina
Pyjama Rainbow DoridChromodoris lochi
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).
- 264 open-data records from 1974 to 2024.
- Species data updated October 26, 2026.
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