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Issue: Vol. 4878 No. 2: 13 Nov. 2020
Type: Article
Published: 2020-11-13
DOI: 10.11646/zootaxa.4878.2.11
Page range: 385–391
Abstract views: 111
PDF downloaded: 4

Two new species of Fauveliopsidae (Annelida, Sedentaria) from submarine caves and deep sea, Japan

National Institute of Polar Research, 10-3 Midoricho, Tachikawa, Tokyo 190-8518, Japan.
Research Center for Marine Biology, Graduate School of Life Sciences, Tohoku University, 9 Sakamoto, Asamushi, Aomori 039-3501, Japan.
Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Okinawa Prefectual University of Arts, 1-4 Shuri-Tounokura, Naha, Okinawa 903-8602, Japan.
Fisheries Resources Institute, Japan Fisheries Research and Education Agency, 2-12-4 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-8648, Japan.
National Institute of Polar Research, 10-3 Midoricho, Tachikawa, Tokyo 190-8518, Japan. Department of Polar Science, SOKENDAI (The Graduate University for Advanced Studies), 10-3 Midoricho, Tachikawa, Tokyo 190-8518, Japan.
Fauveliopsis Laubieriopsis Polychaeta Polychaetes stygobionts Annelida

Abstract

Two new species of fauveliopsid annelids, Fauveliopsis antri sp. nov. and Laubieriopsis soyoae sp. nov., are described based on specimens collected from Japanese waters. Fauveliopsis antri sp. nov. inhabits submarine caves and can be discriminated from the other congeners by the following features: i) 32 chaetigers, ii) chaetigers 1–3 with stout hooks, iii) minute body (about 1 mm in length), iv) all parapodia with same number of chaetae (2 notochaetae; 2 neurochaetae), and v) presence of dorsal and ventral papillae. Laubieriopsis soyoae sp. nov. inhabits deep water sediments and can be distinguished from the other congeners by: i) 24 chaetigers, ii) chaetigers 1–3 without annulations, and iii) acicular chaetae with tips entire, without denticles.

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