Chelidonura amoena Bergh, 1905
- Location
- Red Beach, Okinawa Island (East coast), Okinawa, Japan
- Date
- 2011/02/13
- Length
- 30mm
- Depth
- 5.0m
- Water temperature
- 20.0℃
Description
The living animal is about 4.3 cm in length and approximately 1 cm wide. The anterior shield is punctate brownish-grey with a yellow front edge and white lateral edging; the outer face of the parapodial flaps is punctate grey with a white border; the posterior shield is coloured like the anterior shield; the posterior flaps are bright yellow. The corners of the anterior shield do not project; the posterior shield strongly overhangs the tail. The posterior flaps are flattened and slightly pointed, the left almost twice as long as the right. The gill consists of about 8 composite leaves, with roughly its posterior half projecting freely.Distribution
Type locality: a reef off Saleyer (Selayar Island, south of Sulawesi, Indonesia). Now widely known across coral reef habitats of the Indo-West Pacific.Etymology
The Latin adjective amoenus (feminine amoena) means "pleasant, lovely, charming"; the descriptive epithet refers to the bright colour pattern (yellow front edge and white lateral edging on the anterior shield, broader white edging on the posterior shield, and bright yellow posterior flaps).Remarks
The genus name Chelidonura is a compound of Greek chelidōn ("swallow") and oura ("tail"), referring to the elongate, asymmetrical, swallow-tail-like posterior flaps. Like other Aglajidae, Chelidonura amoena is a carnivorous predator of flatworms (Platyhelminthes) on sand bottoms.References
- Chelidonura amoena Bgh. n. sp., Bergh R. (1905). Die Opisthobranchiata der Siboga-expedition. https://doi.org/10.5962/bhl.title.11223
- コナユキツバメガイ, 益田一. (1999). 海洋生物ガイドブック. 第2刷. 東海大学出版会.
- アモエナ, 小野篤司. (1999). ウミウシガイドブック. TBSブリタニカ.
- コナユキツバメガイ, 鈴木敬宇. (2000). ウミウシガイドブック〈2〉. TBSブリタニカ.
- ケリドヌラ・アモエナ, 殿塚孝昌. (2003). ウミウシガイドブック〈3〉. TBSブリタニカ.
- コナユキツバメガイ, 小野篤司. (2004). 沖縄のウミウシ. ラトルズ.
- コナユキツバメガイ, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- コナユキツバメガイ, 小野篤司 & 加藤昌一. (2009). ウミウシ. 誠文堂新光社.
- コナユキツバメガイ, 中野理枝. (2018). 日本のウミウシ. 文一総合出版.
- Chelidonura amoena, Terrence Gosliner, Ángel Valdés and David Behrens. (2018). Nudibranch and Sea Slug Identification Indo-Pacific 2nd Edition. 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, Chelidonura amoena, is included in the book.
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Tag:
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.