Skip to main content Skip to main navigation menu Skip to site footer
Type: Article
Published: 2015-09-02
Page range: 258–266
Abstract views: 14
PDF downloaded: 1

Fallacia decussata, sp. nov. : a new marine benthic diatom (Bacillariophyceae) from Northeast Asia

Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
Tokyo University of Marine Science and Technology
The Nippon Dental University School of Life Dentistry at Tokyo
Tokyo University of Marine Science and Technology
Institute of Oceanology, Chinese Academy of Sciences
Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
Bacillariophyceae epipsammic Fallacia decussata intertidal sediments marine diatom Algae Northeast Asia

Abstract

Fallacia decussata is described as a new marine littoral diatom from Northeast Asia. Its morphology was examined with light, scanning and transmission electron microscopy. Fallacia decussata has a unique feature, viz., possessing 2–4 pores on each side of raphe terminal fissures, while all congeners have either invariably a single pore or only a slit. This species differs from congeners also by a combination of morphological features including: i) elliptical valves with broadly round poles; and ii) convex and centrally strongly constricted lateral sterna, forming a more or less X-shaped central area; iii) striation density of 25–28 in 10 μm. This species is an epipsammic diatom currently known from intertidal zone in the northwest Pacific Ocean.