Two-colour Waffle Dorid
Halgerda dichromis
- Usual depth2–28 m
- Water temperature23–25 °C
- Best monthsMay, September, and December
- How commonRare
Photo credit: (c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
About this species
Halgerda dichromis is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.
Text from the Wikipedia article “Halgerda dichromis”, 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: 3 records
- February: 1 records
- March: 2 records
- April: 4 records
- May: 6 records
- June: 3 records
- July: 6 records
- August: 5 records
- September: 7 records
- October: 5 records
- November: 2 records
- December: 8 records
Depth and water temperature
Depth
Mostly recorded at 2–28 m · Deepest record: 28 m
Water temperature
Recorded in surface water of 23–25 °C
Photos
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Peter Southwood, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Peter Southwood, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Names and classification
- English
- Two-colour Waffle Dorid, Two-coloured halgerda
Similar species
Batangas HalgerdaHalgerda batangas
Gold Lace NudibranchHalgerda terramtuentis
Willey’s NudibranchHalgerda willeyi
Gold-spotted NudibranchHalgerda aurantiomaculata
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).
- 16 open-data records from 1980 to 2019.
- Species data updated November 3, 2026.
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