Pikachu Longhorn Dorid
Thecacera pacifica
- Usual depth8–25 m
- Water temperature18–29 °C
- Best monthsJanuary, February, and April
- How commonOccasional
About this species
Thecacera pacifica is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Polyceridae. It is sometimes also nicknamed the Pikachu nudibranch due to its resemblance to the Pokémon character Pikachu.
Text from the Wikipedia article “Thecacera pacifica”, 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: 42 records
- February: 34 records
- March: 27 records
- April: 33 records
- May: 10 records
- June: 22 records
- July: 24 records
- August: 18 records
- September: 20 records
- October: 9 records
- November: 13 records
- December: 27 records
Depth and water temperature
Depth
Mostly recorded at 8–25 m · Deepest record: 30 m
Water temperature
Recorded in surface water of 18–29 °C
Names and classification
- English
- Pikachu Longhorn Dorid, Orange Sea Slug, Pacific Thecacera, Pikachu Nudibranch, Pikachu Sea Slug
Names in 3 more languages
- German
- Pazifische Thecacera
- Japanese
- ウデフリツノザヤウミウシ
- Simplified Chinese
- 太平洋多角海牛
Other scientific names: Ohola pacifica, Thecacera inhacae
Similar species
Chamberlain's NembrothaNembrotha chamberlaini
Crested NembrothaNembrotha cristata
Trance Wrinkle DoridNembrotha kubaryana
Ivory Wrinkle DoridNembrotha lineolata
Shadowy Wrinkle DoridNembrotha milleri
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).
- 287 open-data records from 1972 to 2026.
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