Imperial Nudibranch
Hypselodoris imperialis
- Usual depth1–12 m
- Water temperature23–29 °C
- Best monthsJanuary, February, and March
- How commonOccasional
Photo credit: no rights reserved · CC0 1.0 · iNaturalist
About this species
Hypselodoris imperialis is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Text from the Wikipedia article “Hypselodoris imperialis”, 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: 120 records
- February: 98 records
- March: 100 records
- April: 77 records
- May: 68 records
- June: 56 records
- July: 38 records
- August: 39 records
- September: 87 records
- October: 55 records
- November: 84 records
- December: 95 records
Depth and water temperature
Depth
Mostly recorded at 1–12 m · Deepest record: 24 m
Water temperature
Recorded in surface water of 23–29 °C
Photos
(c) Thomas Irvine, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Thomas Irvine, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Martin Purdy, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) natomik, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ryan McMinds, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Imperial Nudibranch
Names in 1 more languages
- French
- Doris impérial
Other scientific names: Chromodoris imperialis, Doriprismatica imperialis, Risbecia imperialis
Similar species
Cinderella Sea SlugHypselodoris apolegma
Bennett's HypselodorisHypselodoris bennetti
Lavender Split-tooth DoridHypselodoris bullockii
Triple-striped Split-tooth DoridHypselodoris emma
Black-spotted Split-tooth DoridHypselodoris infucata
Double-banded Split-tooth DoridHypselodoris maculosa
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).
- 102 open-data records from 1983 to 2024.
- Species data updated November 3, 2026.
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