Two new marine benthic diatom species of Hippodonta(Bacillariophyceae)from the coast of China:H.nanjiensis sp.nov.and H.qingdaoensis sp.nov.  

作　　者：Yuhang LI Zhongmin SUN Tamotsu NAGUMO Kuidong XU 

机构地区：[1]Laboratory of Marine Organism Taxonomy and Phylogeny,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Echigo Natural History Laboratory,Kowada 719,Ojiya,Niigata 947-0041,Japan [3]Laboratory for Marine Biology and Biotechnology,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China

出　　处：《Journal of Oceanology and Limnology》2021年第3期1033-1041,共9页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Science Foundation of China(No.31800171);the CAS President’s International Fellowship for Visiting Scientists(No.2018VBA0035);the Nanji Islands Marine Natural Reserve Project(No.NJKJ-2013-005)。

摘　　要：The diversity and distribution of Hippodonta species on the coast of China are largely unknown due to limited investigations.In this paper,we report the detailed morphology and ultrastructure of two new species:H.nanjiensis sp.nov.,collected from intertidal sandy sediments of Nanji Islands,the East China Sea and H.qingdaoensis sp.nov.,collected from intertidal sandy sediments of the No.1 Bathing Beach in Qingdao City,the Yellow Sea.Both species occur mainly in the middle part of the intertidal zone.H.nanjiensis possesses a unique large round central area.H.qingdaoensis differs from congeners in having a unique stria pattern,wherein the areolae in the middle transapical striae are less developed or absent on the primary side of the valve,and two areolae per stria are apparent under light microscopy(LM).This study expands our knowledge of Hippodonta diversity and distribution on the coast of China.

关 键 词：Hippodonta intertidal sediment new species Yellow Sea East China Sea 

分 类 号：Q949.27[生物学—植物学]