California seahare
Aplysia californica
- Usual depth5–14 m
- Water temperature13–20 °C
- Best monthsNovember
- How commonCommon
About this species
The California sea hare is a species of sea slug in the sea hare family, Aplysiidae.
Text from the Wikipedia article “California sea hare”, 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: 14 records
- March: 12 records
- April: 10 records
- May: 18 records
- June: 371 records
- July: 717 records
- August: 323 records
- September: 152 records
- October: 82 records
- November: 22,687 records
- December: 36 records
Depth and water temperature
Depth
Mostly recorded at 5–14 m · Deepest record: 287 m
Water temperature
Recorded in surface water of 13–20 °C
Names and classification
- English
- California seahare
Other scientific names: Aplysia (Neaplysia) nettiae, Aplysia (Varria) californica, Aplysia rehderi, Aplysia ritteri, Aplysia robertsi, Tethys (Neaplysia) californica, Tethys (Neaplysia) ritteri, Tethys californicus, Tethys robertsi
Similar species
Ocellate Sea HareAplysia argus
Large-spotted sea hareAplysia dactylomela
Sucker-foot Sea HareAplysia juliana
Dwarf sea hareAplysia parvula
- Spotted sea hare
Aplysia oculifera
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).
- 31,782 open-data records from 1897 to 2024.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.