Fellow's Nudibranch
Hiatodoris fellowsi
- Usual depth8–18 m
- Water temperature23–26 °C
- Best monthsMay, June, and July
- How commonRare
Photo credit: no rights reserved · CC0 1.0 · iNaturalist
About this species
Hiatodoris is a monotypic genus of sea slugs, specifically dorid nudibranchs. They are marine gastropod molluscs in the family Discodorididae. The only species is Hiatodoris fellowsi commonly known as the Snowball Sea Slug or Fellow's Nudibranch. It was previously known as Peltodoris fellowsi.
Text from the Wikipedia article “Hiatodoris”, 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: 12 records
- February: 10 records
- March: 10 records
- April: 9 records
- May: 31 records
- June: 37 records
- July: 34 records
- August: 19 records
- September: 20 records
- October: 10 records
- November: 5 records
- December: 10 records
Depth and water temperature
Depth
Mostly recorded at 8–18 m · Deepest record: 20 m
Water temperature
Recorded in surface water of 23–26 °C
Photos
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ken-ichi Ueda, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Fellow's Nudibranch
Names in 2 more languages
- French
- Hiatodoris
- Japanese
- ユキダマウミウシ
Other scientific names: Peltodoris fellowsi
Similar species
Pancake AphelodorisAphelodoris varia
Bohol DiscodorisDiscodoris boholiensis
Batangas HalgerdaHalgerda batangas
Gold Lace NudibranchHalgerda terramtuentis
Willey’s NudibranchHalgerda willeyi
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).
- 42 open-data records from 2003 to 2026.
- Species data updated November 3, 2026.
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