Tyrannodoris luteolineata (Baba, 1936)
- Location
- Sunabe Water Treatment Plants, Okinawa Island (Chatan and Southern area), Okinawa, Japan
- Date
- 2015/05/09
- Length
- 130mm
- Depth
- 10.0m
- Water temperature
- 23.0℃
Description
A polycerid 30-70 mm in length. The body is limaciform, rising from the front end to the middle (where the branchiae lie) and lowering again to a long pointed tail. The back is smooth and passes into the sides without a line of demarcation. The head is slightly expanded, bearing a pair of conical, perfoliated rhinophores fully retractile within sheaths. The non-retractile branchiae, three in number, are bipinnate and arranged in a posteriorly-open semicircle (five in the largest specimen). The anal papilla lies close behind the branchiae; the genital opening is on the right side about halfway between the head and the branchiae. The foot is linear, ending posteriorly in a pointed tail; the anterior edge is truncated with obtuse corners. The mouth is a circular pore flanked by a fleshy oral tentacle on each side.The back and sides are deep blue-black, ornamented with orange longitudinal lines. Rhinophores and branchial plumes are black; the sole of the foot is blue-black.
Distribution
Type locality: Ishigaki-shima, Ryukyu Islands, Japan.Etymology
The specific epithet luteolineata is a Latin compound of luteus ("yellow") and lineatus ("lined"), meaning "yellow-lined", describing the orange-to-dark-yellow longitudinal lines on the blue-black ground.Remarks
Originally placed in Nembrotha, later transferred via Roboastra to the genus Tyrannodoris. The Japanese name "Ishigaki-ryūgū-umiushi" refers to the type locality, Ishigaki Island.References
- Nembrotha luteolineata, Baba K. (1936). Opisthobranchia Of The Ryukyu (Okinawa) Islands. Journal of the Faculty of Agriculture, Kyushu University. 5(1): 1-50. https://doi.org/10.5109/22580
- イシガキリュウグウウミウシ, 益田一. (1999). 海洋生物ガイドブック. 東海大学出版会.
- イシガキリュウグウウミウシ, 益田一. (1999). 海洋生物ガイドブック. 第2刷. 東海大学出版会.
- イシガキリュウグウウミウシ, 小野篤司. (1999). ウミウシガイドブック. TBSブリタニカ.
- イシガキリュウグウウミウシ, 鈴木敬宇. (2000). ウミウシガイドブック〈2〉. TBSブリタニカ.
- イシガキリュウグウウミウシ, 殿塚孝昌. (2003). ウミウシガイドブック〈3〉. TBSブリタニカ.
- イシガキリュウグウウミウシ, 小野篤司. (2004). 沖縄のウミウシ. ラトルズ.
- イシガキリュウグウウミウシ, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- イシガキリュウグウウミウシ, 小野篤司 & 加藤昌一. (2009). ウミウシ. 誠文堂新光社.
- Roboastra luteolineata, Terrence Gosliner, Ángel Valdés and David Behrens. (2015). Nudibranch and Sea Slug Identification Indo-Pacific. New World Pubns Inc.
- Willan R.C. & Chang Y.-W. [Yen-Wei]. (2017). Description of three new species of Tambja (Gastropoda, Nudibranchia, Polyceridae) from the western Pacific Ocean reveals morphological characters with taxonomic and phylogenetic significance for traditional Polyceridae and related 'phaneorobranch' nudibranchs. Basteria. 81(1-3): 1-23.
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, Tyrannodoris luteolineata, 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.