Goniobranchus obsoletus

About this species

Goniobranchus obsoletus is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

Text from the Wikipedia article “Goniobranchus obsoletus”, 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: 0 records
February: 5 records
March: 9 records
April: 7 records
May: 15 records
June: 11 records
July: 6 records
August: 1 records
September: 7 records
October: 4 records
November: 2 records
December: 3 records

Depth and water temperature

Water temperature

Recorded in surface water of 27–28 °C

26–28 °C: 1 records
28–30 °C: 1 records

Photos

(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist
(c) yelena_antipova, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

Other scientific names: Casella obsoleta, Chromodoris obsoleta, Doris obsoleta

Similar species

Coi's Goniobranchus
Goniobranchus coi
Collingwood's Goniobranchus
Goniobranchus collingwoodi
Daphne’s Nudibranch
Goniobranchus daphne
Goniobranchus epicurius
Fiesta Rainbow Dorid
Goniobranchus fidelis
Geometric Rainbow Dorid
Goniobranchus 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).
12 open-data records from 2009 to 2020.
Species data updated November 3, 2026.