Trapania palmula Gosliner & Fahey, 2008
- Location
- USAT Liberty Shipwreck, Tulamben, Pulau Bali, Indonesia
- Date
- 2017/06/23
- Length
- 8mm
- Depth
- 20.0m
- Water temperature
- 29.0℃
Description
Body 4–6 mm long, elongate and convex, lacking a notal margin. The notum bears short rounded tubercles unevenly distributed over the surface. Oral tentacles are long and pointed; the rhinophores are short and stout with five lamellae and elongate pointed apices. The curved extra-rhinophoral appendages are long compared with the rhinophores. Gill is composed of many finely branched, finely pinnate branches. Extra-branchial appendages are paddle-shaped and curved, similar in size to the extra-rhinophoral appendages.The body is cream yellow with dense brown pigment patches punctuated with cream spots. The colour of the anterior foot tentacles could not be determined. Oral tentacles have cream-coloured bases with light brown blotches and brown tips. Extra-rhinophoral and extra-branchial appendages are cream yellow at the base, white on the paddles with a blue diagonal band midway. The rhinophores are tan-brown and the gill leaves are a slightly lighter shade of tan.
Distribution
Philippines (type locality: Maricaban Island, Batangas), Indonesia and central Japan.Etymology
Verbatim from the original description (Gosliner & Fahey, 2008, p.66):The specific name palmula is taken from the Latin word meaning the 'blade of an oar'. This describes the unique shape of the extra-rhinophoral and extra-branchial appendages on this species.
Remarks
Described as one of 16 new Indo-Pacific Trapania species in Gosliner, T.M. & Fahey, S.J. 2008 Zoological Journal of the Linnean Society 152: 53-111. Synonymies listed at the start of the description include Trapania sp. 2 Watanabe (Umiushi), Trapania sp. 5 Rudman (SeaSlug Forum) and Trapania sp. 5 Nakano 2004 (p.66).References
- Trapania sp. 5 (Rudman, Sea Slug Forum), Rudman W.B. (1998-2010). Sea Slug Forum. Australian Museum, Sydney. http://www.seaslugforum.net/
- ツガルウミウシ属の1種 4, 小野篤司. (2004). 沖縄のウミウシ. ラトルズ.
- ツガルウミウシ属の1種 3, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
- Trapania palmula sp. nov., Gosliner T.M. & Fahey S.J. (2008). Systematics of Trapania (Mollusca: Nudibranchia: Goniodorididae) with descriptions of 16 new species. Systematics and Biodiversity. 6(1): 53-98. https://doi.org/10.1017/s1477200007002587
- アオモンツガルウミウシ(新称), 中野理枝 & 小谷光. (2016). 高知県大月町樫西海域及び一切海域から記録された後鰓類. Kuroshio Biosphere. 12: 21-43.
- アオモンツガルウミウシ, アムロツガルウミウシ（新称）, 小野篤司 & 加藤昌一. (2020). 新版 ウミウシ. 誠文堂新光社.
- Paz-Sedano S., Moles J., Smirnoff D., Gosliner T.M. & Pola M. (2024). A combined phylogenetic strategy illuminates the evolution of Goniodorididae nudibranchs (Mollusca, Gastropoda, Heterobranchia). Molecular Phylogenetics and Evolution. 192: 107990. https://doi.org/10.1016/j.ympev.2023.107990
Featured in this book
小野篤司 & 加藤昌一. (2020). 新版 ウミウシ. 誠文堂新光社.
誠文堂新光社
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Tag:
Same Genus Nudibranchs
Similar Colors Nudibranchs
Academic Database
Sea slug observation data is available in international marine biodiversity databases.