Tenellia sibogae (Bergh, 1905)
- Location
- Tengan(Kombu), Okinawa Island (East coast), Okinawa, Japan
- Date
- 2010/01/02
- Length
- 12mm
- Depth
- 4.0m
- Water temperature
- 20.0℃
Description
A medium-sized aeolid, 21-24 mm in preserved body length. The body is elongate, with the dorsum rounded into low body sides; the broad mid-dorsal area remains bare back to the tail. The body sides bear nine groups of cerata (epinotidia) arranged in oblique rows running posteriorly upwards, each group typically holding 6-12 cerata in a single row. The cerata are conical but in preserved material become strongly knobbly and often entangled. The ground colour of preserved specimens is light milky white on the body, tentacles and rhinophores, while the cerata are dirty greyish-brown with white tips. The foot is rounded in front with a strong rim furrow, the foot tentacles are slender and elongate, and the tail is pointed.Distribution
Type locality: Pepela Bay on the east coast of Rotti Island, Indonesia. At the time of description the species was known from just two localities in Indonesia (Pepela Bay on Rotti Island and Nahalia Bay on Nusa-Laut Island).Etymology
The specific epithet sibogae commemorates the Siboga Expedition (1899-1900) — the survey vessel HNLMS Siboga from which the type material was collected.Remarks
A coral-feeding aeolid that preys on dendrophylliid corals such as Tubastraea.Animals long figured in Japanese field guides as Phestilla / Tenellia sibogae show differences in external morphology and ecology from Indonesian type-locality material, and are likely to represent a distinct (potentially undescribed) species. Recent revisions of Phestilla have reinstated the coral-feeding clade as a separate genus, but the taxonomic status of the Japanese "sibogae"-like animals remains unresolved.
References
- Phestilla Sibogae Bgh. n. sp., Bergh R. (1905). Die Opisthobranchiata der Siboga-expedition. https://doi.org/10.5962/bhl.title.11223
- Flabellina sp. 1, Rudman, W.B., 1999 (March 1) Flabellina sp. 1. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/flabsp1
- ミチヨミノウミウシ（仮称）, 益田一. (1999). 海洋生物ガイドブック. 東海大学出版会.
- ミチヨミノウミウシ（仮称）, 小野篤司. (1999). ウミウシガイドブック. TBSブリタニカ.
- ミチヨミノウミウシ, 鈴木敬宇. (2000). ウミウシガイドブック〈2〉. TBSブリタニカ.
- フラベリナ・ルブロリネアタ, 殿塚孝昌. (2003). ウミウシガイドブック〈3〉. TBSブリタニカ.
- Cuthona sibogae, 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, Tenellia sibogae, 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.