Hypselodoris festiva (A. Adams, 1861)
- Location
- Gontarou Rock, Hayama, Kanagawa, Japan
- Date
- Length
- 20mm
- Depth
- 8.0m
- Water temperature
- 20.0℃
Description
Body background a vivid blue, with the mantle margin edged in yellow. A single yellow longitudinal line runs along the dorsal midline, flanked by additional yellow spots or short streaks. The yellow markings are highly variable: dots, dashes, broken lines, occasionally absent, and sometimes overlaid with irregular black blotches. Rhinophores are orange; the gills are white with orange axes. Reaches about 30 mm in length.Distribution
Type locality: Tsushima, Korea Strait. Distributed along the coasts of East Asia, including Japan (Honshu, Shikoku, Kyushu), Korea, Hong Kong, and Taiwan. In Japan, recorded as far north as Asamushi, Aomori Prefecture and southwards through the main islands.Etymology
The specific epithet festiva is Latin for "festive" or "festal," alluding to the bright, festive coloration of yellow lines and spots on a blue ground.Remarks
Like other members of the genus, this species feeds on sponges, particularly dictyoceratid sponges of the genus Dysidea. Hypselodoris festiva is one of the most familiar and commonly encountered nudibranchs along the Japanese coast, occurring year-round on rocky shores and shallow subtidal cobble habitats.References
- Hypselodoris festiva, Stimpson W. (1855). Descriptions of some new marine Invertebrata. Proceedings of the Academy of Natural Sciences of Philadelphia. 7(10): 385-394.
- 青うみうし(新称), 藤田經信. (1893). 相州三浦三崎近傍ノ隱鰓うみうし科 (Cryptobranchiate Nudibranchiata)(第四十七號ノ續キ). 動物學雜誌. 5(53): 95-98.
- アオウミウシ, Baba K. (1949). Opisthobranchia of Sagami Bay collected by His Majesty the Emperor of Japan (相模湾産後鰓類図譜). Iwanami Shoten, Tokyo. 4+2+194+7 pp., pls. 1-50.
- Glossodoris festiva (Adams) Aoumiushi, Baba, K. 1957. A revised list of the species of Opisthobranchia from the northern part of Japan, with some additional descriptions. J. Fac. Sci., Hokkaido Univ.,ser. 6, Zool. 13(1-4):8-14.
- Hypselodoris festiva (A. Adams, 1861), Gosliner T.M. & Johnson R.F. (1999). Phylogeny of Hypselodoris (Nudibranchia: Chromodorididae) with a review of the monophyletic clade of Indo-Pacific species, including descriptions of twelve new species. Zoological Journal of the Linnean Society. 125: 1-114. https://doi.org/10.1111/j.1096-3642.1999.tb00585.x
- アオウミウシ, 益田一. (1999). 海洋生物ガイドブック. 東海大学出版会.
- アオウミウシ, 鈴木敬宇. (2000). ウミウシガイドブック〈2〉. TBSブリタニカ.
- アオウミウシ, 奥谷喬司. (2000). 日本近海産貝類図鑑. 東海大学出版会.
- 高岡生物研究会. (2002). 日本海のウミウシ. 第2版.
- アオウミウシ, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- アオウミウシ, 小野篤司 & 加藤昌一. (2009). ウミウシ. 誠文堂新光社.
- Hypselodoris festiva, Johnson R.F. & Gosliner T.M. (2012). Traditional taxonomic groupings mask evolutionary history: a molecular phylogeny and new classification of the chromodorid nudibranchs. PLoS ONE 7(4): e33479.
- アオウミウシ, 中野理枝. (2018). 日本のウミウシ. 文一総合出版.
Featured in this book
中野理枝. (2019). 日本のウミウシ. 第二版. 文一総合出版.
文一総合出版
This species, Hypselodoris festiva, is included in the book.
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Seasonality
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Tag:
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.