
Halgerda malesso
- Usual depth12–36 m
- Water temperature25–29 °C
- Best monthsSeptember
- How commonRare
Photo credit: (c) fletchermoore, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Halgerda malesso is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusc in the family Discodorididae.
Text from the Wikipedia article “Halgerda malesso”, 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: 2 records
- February: 2 records
- March: 3 records
- April: 2 records
- May: 7 records
- June: 3 records
- July: 8 records
- August: 2 records
- September: 14 records
- October: 4 records
- November: 1 records
- December: 1 records
Depth and water temperature
Depth
Mostly recorded at 12–36 m · Deepest record: 92 m
Water temperature
Recorded in surface water of 25–29 °C
Names and classification
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).
- 27 open-data records from 1983 to 2010.
- Species data updated November 3, 2026.
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