Tubulophilinopsis lineolata (H. Adams & A. Adams, 1854) – Nudibranch Identification & Photos | SEASLUG.WORLD

ヨコジマキセワタ Tubulophilinopsis lineolata

Location: Dragon Lady, Kerama(Zamami･Amuro･Gahi･Agenashiku), Okinawa, Japan
Date: 2012/05/03
Length: 25mm
Depth: 15.0m
Water temperature: 25.0℃

Description

A mid-sized aglajid reaching about 40-50 mm. Body pale brown to grey, with numerous fine dark brown transverse lines running across the dorsum. The anterior tip of the head-shield and the posterior tip of the dorsal shield are tinged indigo blue. A prominent bump on the head houses a long, tubular buccal bulb. The shell is internal, rudimentary, flat and triangular. Lives in sand, into which it burrows.

Distribution

Indo-West Pacific tropical waters. Originally described from Australia.

Etymology

The specific epithet lineolata is the Latin for "finely lined" (diminutive of lineata), in reference to the numerous fine dark transverse lines that cross the dorsum.

Remarks

Members of the Aglajidae are carnivorous, preying mainly on other cephalaspideans. Tubulophilinopsis lineolata belongs to a group of aglajids characterised by a long tubular buccal bulb; while related species in the group feed on bubble-shell snails such as Bulla and Haminoea, the specific prey of T. lineolata has not been documented.

References

Aglaia lineolata, Adams H. & Adams A. (1853-1858). The genera of recent Mollusca; arranged according to their organization. Volume 2. John van Voorst, London. xli + 661 pp., pls. 73-128. Issued in fascicles XVII-XXXVI (Vol. II pp.1-660 = October 1854 to November 1858).
ヨコジマキセワタ（新稱）, 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.
ヨコジマキセワタガイ, 益田一. (1999). 海洋生物ガイドブック. 第2刷. 東海大学出版会.
ヨコジマキセワタガイ, 鈴木敬宇. (2000). ウミウシガイドブック〈2〉. TBSブリタニカ.
ヨコジマキセワタ, 中野理枝. (2004). 本州のウミウシ. ラトルズ.
ヨコジマキセワタ, 小野篤司 & 加藤昌一. (2009). ウミウシ. 誠文堂新光社.
Philinopsis lineolata, Terrence Gosliner, Ángel Valdés and David Behrens. (2015). Nudibranch and Sea Slug Identification Indo-Pacific. New World Pubns Inc.
Andrea Zamora-Silva and Manuel António E. Malaquias Molecular phylogeny of the Aglajidae head-shield sea slugs (Heterobranchia: Cephalaspidea): new evolutionary lineages revealed and proposal of a new classification Zoological Journal of the Linnean Society, 2017

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. cover

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, Tubulophilinopsis lineolata, is included in the book.

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Academic Database

Sea slug observation data is available in international marine biodiversity databases.

BISMaL OBIS DOI: 10.48518/00032

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