Jorunna hartleyi
- Usual depth0.5 m
- Water temperature14–17 °C
- Best monthsSeptember and October
- How commonRare
Photo credit: (c) Christopher Mark, some rights reserved (CC BY), uploaded by Christopher Mark · CC BY · iNaturalist
About this species
Jorunna hartleyi is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae.
Text from the Wikipedia article “Jorunna hartleyi”, 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: 7 records
- February: 0 records
- March: 2 records
- April: 2 records
- May: 0 records
- June: 0 records
- July: 4 records
- August: 4 records
- September: 12 records
- October: 18 records
- November: 8 records
- December: 2 records
Depth and water temperature
Depth
Mostly recorded at 0.5 m · Deepest record: 0.5 m
Water temperature
Recorded in surface water of 14–17 °C
Photos
(c) Christopher Mark, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Christopher Mark, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Other scientific names: Rostanga hartleyi
Similar species
Ringed Velvet DoridJorunna funebris
Turret Velvet DoridJorunna rubescens
Grey sea slugJorunna tomentosa
Peppercorn Velvet DoridJorunna parva
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).
- 28 open-data records from 1957 to 2009.
- Species data updated November 3, 2026.
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