Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean

GENKI KOBAYASHI; TOMOYUKI MIURA; SHIGEAKI KOJIMA

doi:10.11646/zootaxa.4018.1.5

Issue: Vol. 4018 No. 1: 14 Sept. 2015

Type: Article

Published: 2015-09-14

DOI: 10.11646/zootaxa.4018.1.5

Page range: 97–108

Abstract views: 73

PDF downloaded: 45

Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean

GENKI KOBAYASHI⁺⁻
TOMOYUKI MIURA⁺⁻
SHIGEAKI KOJIMA⁺⁻

Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564 Japan. Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 Japan

Faculty of Agriculture, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan

Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564 Japan. Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 Japan

Annelida Lamellibrachia sagami Siboglinidae Sagami Bay vestimentiferan tubeworms

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Abstract

A new vestimentiferan tubeworm species of the genus Lamellibrachia Webb, 1969 is described. It was collected from cold seep areas off Hatsushima in Sagami Bay and at the Daini Tenryu Knoll in the Nankai Trough (606–1170 m depth). Lamellibrachia sagami sp. nov. differs from seven congeneric species in the following character states; showing a wider range of diameter of vestimental and trunk plaques than L. barhami, L. luymesi, L. satsuma and L. anaximandri; and having more numerous sheath lamellae (3–6 pairs) than L. juni (2–3 pairs) but fewer than L. victori (7 pairs) and L. columna (8–16 pairs).