Chocolate Mango Nudibranch
Reticulidia halgerda
- Usual depth11–35 m
- Water temperature23–30 °C
- Best monthsJanuary, April, and November
- How commonRare
Photo credit: (c) Steve Childs, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Reticulidia halgerda is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.
Text from the Wikipedia article “Reticulidia halgerda”, 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: 44 records
- February: 29 records
- March: 39 records
- April: 45 records
- May: 37 records
- June: 29 records
- July: 25 records
- August: 27 records
- September: 18 records
- October: 21 records
- November: 41 records
- December: 27 records
Depth and water temperature
Depth
Mostly recorded at 11–35 m · Deepest record: 65 m
Water temperature
Recorded in surface water of 23–30 °C
Photos
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Laura Fernández Winzer, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Pierre Pericard, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Pierre Pericard, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Names and classification
- English
- Chocolate Mango Nudibranch
Names in 3 more languages
- French
- Réticulidie d'Halgerda
- Japanese
- クロカブトウミウシ
- Simplified Chinese
- 赫格葉海蛞蝓
Similar species
Mushroom Coral ReticulidaReticulidia fungia
Heavenly Wart SlugPhyllidia coelestis
Elegant PhyllidiaPhyllidia elegans
Ocellated Wart SlugPhyllidia ocellata
Black-rayed phyllidiaPhyllidia picta
Variable Wart SlugPhyllidia varicosa
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).
- 146 open-data records from 1974 to 2025.
- Species data updated October 26, 2026.
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