Triple-striped Split-tooth Dorid
Hypselodoris emma
- Usual depth4–25 m
- Water temperature21–30 °C
- Best monthsOctober
- How commonOccasional
Photo credit: (c) Bart, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Hypselodoris emma is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.
Text from the Wikipedia article “Hypselodoris emma”, 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: 33 records
- February: 43 records
- March: 46 records
- April: 64 records
- May: 44 records
- June: 23 records
- July: 31 records
- August: 65 records
- September: 56 records
- October: 137 records
- November: 54 records
- December: 48 records
Depth and water temperature
Depth
Mostly recorded at 4–25 m · Deepest record: 35 m
Water temperature
Recorded in surface water of 21–30 °C
Photos
(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Pauline Walsh Jacobson, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Gregor Bailar, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Triple-striped Split-tooth Dorid, Emma's Hypselodoris
Names in 2 more languages
- French
- Doris d'Emma
- Japanese
- エマイロウミウシ
Other scientific names: Hypselodoris katerythros
Similar species
Cinderella Sea SlugHypselodoris apolegma
Lavender Split-tooth DoridHypselodoris bullockii
Black-spotted Split-tooth DoridHypselodoris infucata
Double-banded Split-tooth DoridHypselodoris maculosa
Tryon's HypselodorisHypselodoris tryoni
Bumpy Split-tooth DoridHypselodoris whitei
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).
- 226 open-data records from 1975 to 2025.
- Species data updated October 26, 2026.
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