Gymnodoris citrina (Bergh, 1877)
Description
A small nudibranch, about 11 mm in length. The ground colour in life is bright lemon-yellow with scattered ochreous dots over the back and sides; the gill leaves also bear the same dots. The body is fairly stocky with a gently rounded dorsum, the tail occupying about a third of the total length in life. The rhinophore openings are round; the rhinophore club bears about 15 lamellae. The eyes are visible between the rhinophores. The mouth is a round opening with a short oral tentacle on each side. The gill stands a little before the start of the last third of the body length and consists of 10 low plumes arranged in a wide arc, with the anal papilla in a broad posterior recess. The foot is rounded and truncate in front and tapers behind.Distribution
Type locality: the Pelew (Palau) Islands. Now known across the Indo-West Pacific.Etymology
The specific epithet citrina is the feminine of Latin citrinus ("lemon-yellow", from citrus), a descriptive epithet referring to the bright lemon-yellow ground colour of the living animal.Remarks
Originally placed in Trevelyana, later transferred to Gymnodoris. The genus is carnivorous and its members are known to feed on other opisthobranchs.References
- キヌハダモドキ(新称), Baba, K. 1930a. Studies on Japanese nudibranchs (2). A. Polyceridae. B. Okadaia, n.g. (preliminary report). Venus 2(2).
- キヌハダモドキ, 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.
- Gynmodoris citrin a (Bergh) Kinuhada-modoki, 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.
- オバキュウウミウシ（仮称）, 益田一. (1999). 海洋生物ガイドブック. 東海大学出版会.
- モチハダウミウシ, 益田一. (1999). 海洋生物ガイドブック. 第2刷. 東海大学出版会.
- モチハダウミウシ（仮称）, 小野篤司. (1999). ウミウシガイドブック. TBSブリタニカ.
- 高岡生物研究会. (2002). 日本海のウミウシ. 第2版.
- キヌハダモドキ, 小野篤司. (2004). 沖縄のウミウシ. ラトルズ.
- キヌハダモドキ, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- キヌハダモドキ, 小野篤司 & 加藤昌一. (2009). ウミウシ. 誠文堂新光社.
- Gymnodoris citrina, Terrence Gosliner, Ángel Valdés and David Behrens. (2015). Nudibranch and Sea Slug Identification Indo-Pacific. New World Pubns Inc.
Featured in this book
Terrence Gosliner, Ángel Valdés and David Behrens. (2018). Nudibranch and Sea Slug Identification Indo-Pacific 2nd Edition. New World Pubns Inc.
New World Publications
This species, Gymnodoris citrina, is included in the book.
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Photos of Gymnodoris citrina
Tag:
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.