Eubranchus cf. leopoldoi Caballer, Ortea & Espinosa, 2001
- Location
- Sangashita, Hayama, Kanagawa, Japan
- Date
- 2025/12/28
- Length
- 3mm
- Depth
- 5.0m
- Water temperature
- 16.0℃
Description
A small aeolid covered with fine reddish-carmine spots; the body has an overall pinkish-red appearance. The bases of the cerata are red, and the digestive gland within each cerata is reddish-brown. The cerata bear a broad golden-yellow ring near the tip and a vivid blue ring just below it. The rhinophores are long, with white dots scattered along the lower halves and near the tips; the oral tentacles are similarly long and coloured.Distribution
Recorded in Japan from Honshu south to Okinawa, including Nishidomari (Otsuki, Kochi Prefecture), Toyama Bay, Sagami Bay, the Izu Peninsula, and Okinawa. The morphologically similar species Eubranchus leopoldoi, to which Japanese individuals are tentatively referred, was described from Punta Mona on the Caribbean coast of Costa Rica, and the conspecificity of Japanese specimens with the Caribbean type material has not yet been confirmed by molecular or anatomical comparison.Etymology
The specific epithet leopoldoi was given in the original description as a dedication to the Spanish malacologist Leopoldo Moro Abad.References
- Eubranchus leopoldoi sp. nov., Caballer M., Ortea J. & Espinosa J. (2001). Descripción de una nueva especie de Eubranchus Forbes, 1834. In: Espinosa J. & Ortea J. (Eds.) Moluscos del mar Caribe de Costa Rica: Desde Cahuita hasta Gandoca. Avicennia, Suplemento 4: 55-56.
- タマガワミノウミウシ（新称）, 高岡生物研究会. (2002). 日本海のウミウシ. 第2版.
- ホリミノウミウシ属の1種 3, 小野篤司. (2004). 沖縄のウミウシ. ラトルズ.
- Eubranchus sp. 6 cf. leopoldoi, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- タマガワミノウミウシ（新称）, 中野理枝. (2011). 高知県大月町西泊地区から記録された後鰓類. Kuroshio Biosphere. 7: 1-35.
A Kindle field guide by the site author
Kimoto N. (2026). Sea Slugs of Japan & the Indo-Pacific, 2nd Edition.
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Photos of Eubranchus cf. leopoldoi
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.