Hallaxa fuscescens
- Usual depth8–16 m
- Water temperature23–29 °C
- Best monthsFebruary, March, and April
- How commonRare
Photo credit: (c) Srichakra Pranav Tamarapalli, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
About this species
Hallaxa fuscescens is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Actinocyclidae.
Text from the Wikipedia article “Hallaxa fuscescens”, 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: 3 records
- February: 6 records
- March: 7 records
- April: 6 records
- May: 4 records
- June: 4 records
- July: 1 records
- August: 3 records
- September: 2 records
- October: 1 records
- November: 3 records
- December: 3 records
Depth and water temperature
Depth
Mostly recorded at 8–16 m · Deepest record: 16 m
Water temperature
Recorded in surface water of 23–29 °C
Names and classification
Names in 2 more languages
- French
- Doris nuit
- Japanese
- ウスズミウミウシ
Other scientific names: Doris fuscescens
Similar species
- Cryptic Starlet
Hallaxa cryptica
- Smoky Starlet
Hallaxa elongata
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).
- 26 open-data records from 2005 to 2024.
- Species data updated November 3, 2026.
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