Three-lines Purple Doris
Mexichromis trilineata
- Usual depth8–20 m
- Water temperature24–30 °C
- Best monthsMarch, April, and August
- How commonOccasional
Photo credit: (c) Dan Schofield, some rights reserved (CC BY), uploaded by Dan Schofield · CC BY · iNaturalist
About this species
Mexichromis trilineata is a colourful species of sea slug, specifically a dorid nudibranch. This marine gastropod mollusc is in the family Chromodorididae. In 2012 the genus Pectenodoris was included into Mexichromis.
Text from the Wikipedia article “Mexichromis trilineata”, 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: 42 records
- February: 41 records
- March: 72 records
- April: 83 records
- May: 66 records
- June: 42 records
- July: 46 records
- August: 75 records
- September: 39 records
- October: 49 records
- November: 69 records
- December: 65 records
Depth and water temperature
Depth
Mostly recorded at 8–20 m · Deepest record: 30 m
Water temperature
Recorded in surface water of 24–30 °C
Photos
(c) Dan Schofield, 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) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Heine Jensen, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Alicia Christman, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Gregor Bailar, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Three-lines Purple Doris
Names in 2 more languages
- French
- Doris mauve à trois lignes
- Japanese
- キイッポンウミウシ
Other scientific names: Chromodoris virgata, Goniodoris trilineata, Pectenodoris trilineata
Similar species
Beau Vallon Magnificent SlugMexichromis multituberculata
Twinspot Rainbow DoridMexichromis pusilla
- Marie's Mexichromis
Mexichromis mariei
Slender ceratosoma nudibranchCeratosoma gracillimum
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).
- 200 open-data records from 1974 to 2026.
- Species data updated October 26, 2026.
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