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Issue: Vol. 4161 No. 2: 5 Sept. 2016
Type: Article
Published: 2016-09-05
DOI: 10.11646/zootaxa.4161.2.7
Page range: 252–260
Abstract views: 126
PDF downloaded: 5

Bayerotrochus delicatus, a new species of pleurotomariid from Yap Seamount, near Palau, Western Pacific (Gastropoda: Pleurotomariidae)

Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, P. R. China
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, P. R. China
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, P. R. China
Mollusca taxonomy pleurotomariid COI neighbor-joining tree

Abstract

A new pleurotomariid species, Bayerotrochus delicatus sp. nov., collected from the Yap Seamount, near Palau, Western Pacific (8°51′N, 137°47′E), is described and illustrated. The generic assignment is based on morphology and molecular evidence. The new species is characterized by a small, depressed trochoid shell sculptured with delicate spiral threads and axial riblets; the shell surface is lustrous orange mottled with iridescence. The radula has a formula of R + 3 + 23 + (ca. 30) + (ca. 65) + 9. These features can separate Bayerotrochus delicatus sp. nov. from its congeners. To determine the relationships of Bayerotrochus delicatus sp. nov. with other pleurotomariids, a neighbor-joining (NJ) tree was established using available sequences of cytochrome c oxidase I gene (COI) from this study and GenBank.

 

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