Spectacled Rainbow Dorid
Goniobranchus annulatus
- Usual depth4–22 m
- Water temperature24–30 °C
- Best monthsMarch, May, and June
- How commonRare
Photo credit: (c) Astra, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Goniobranchus annulatus is a species of sea slug, a very colourful dorid nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae.
Text from the Wikipedia article “Goniobranchus annulatus”, 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: 34 records
- February: 32 records
- March: 50 records
- April: 32 records
- May: 41 records
- June: 63 records
- July: 29 records
- August: 34 records
- September: 23 records
- October: 38 records
- November: 27 records
- December: 26 records
Depth and water temperature
Depth
Mostly recorded at 4–22 m · Deepest record: 22 m
Water temperature
Recorded in surface water of 24–30 °C
Photos
no rights reserved · CC0 1.0 · iNaturalist 
(c) Biray Pinar, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Mahomed Desai, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Nathan, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) shahar chaikin, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Spectacled Rainbow Dorid, Ringed Chromodoris, Ringed Goniobranch, Ringed Nudibranch
Names in 2 more languages
- German
- Ring-Prachtsternschnecke
- French
- Doris à deux anneaux
Other scientific names: Chromodoris annulata, Glossodoris annulata
Similar species
Coi's GoniobranchusGoniobranchus coi
Collingwood's GoniobranchusGoniobranchus collingwoodi
Daphne’s NudibranchGoniobranchus daphne
Fiesta Rainbow DoridGoniobranchus fidelis
Geometric Rainbow DoridGoniobranchus geometricus
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).
- 161 open-data records from 1904 to 2026.
- Species data updated November 3, 2026.
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