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Issue: Vol. 4728 No. 3: 23 Jan. 2020
Type: Correspondence
Published: 2020-01-23
DOI: 10.11646/zootaxa.4728.3.8
Page range: 385–389
Abstract views: 72
PDF downloaded: 4

Enigmaticolus inflatus sp. nov., a new buccinid species from a methane seep area in the South China Sea (Gastropoda: Neogastropoda)

Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China;
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China;
Gastropoda Neogastropoda

Abstract

During an investigation carried out by the Institute of Oceanology, Chinese Academy of Sciences (IOCAS), two living buccinid specimens were collected from a deep-sea methane seep area in the South China Sea. Observations of the shell, gross anatomy and radular morphology reveal that they represent an undescribed species of the genus Enigmaticolus. In this paper, we describe and illustrate this species as Enigmaticolus inflatus sp. nov. The new species is by general shell shape most similar to Enigmaticolus marshalli Fraussen & Stahlschmidt, 2016 from Kermadec Ridge, New Zealand, but can be distinguished from it by having an inflated shell with reduced spiral sculpture, and by the absence of axial sculpture. Phylogenetic analysis using 636 bp of the cytochrome oxidase c subunit I (COI) gene also supports its systematic placement within Enigmaticolus.

 

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