Shells in the cabinet:four new species of Tellinidae(Mollusca:Bivalvia:Tellinoidea)identified from existing South China Sea collections  

作　　者：Yuyan ZHANG Junlong ZHANG 

机构地区：[1]School of Life Sciences,Qingdao Agricultural University,Qingdao 266109,China [2]Laboratory of Marine Organism Taxonomy and Phylogeny,Qingdao Key Laboratory of Marine Biodiversity and Conservation,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [3]Marine Biological Museum,Chinese Academy of Sciences,Qingdao 266071,China [4]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Oceanology and Limnology》2024年第2期627-639,共13页海洋湖沼学报（英文）

基　　金：Supported by the National Key Research and Development Program of China(Nos.2021YFF0502801,2021YFE0193700);the Strategic Priority Research Program of the Chinese Academy of Sciences(Nos.XDB42000000,XDA22050203);the Taishan Scholars Program(No.tsqn202306280)。

摘　　要：Four species new to science were identified in the Tellinidae museum collections in the Marine Biological Museum of Chinese Academy of Sciences.Pinguitellina triquetra sp.nov.,collected in 1981,has not previously been described or reported.It differs from other Pinguitellina species by its trigonal shape,rose-colored valve interior,and deep and wide pallial sinus,which is confluent with the pallial line.Pinguitellina protuberangla sp.nov.has a broad and deep dorsal corner,short and straight posterodorsal margin,comparatively large adductor scars,depressed and fragile shells,and deep socket at the anterior edge of the right valve.Pinguitellina minuta sp.nov.was previously misidentified as Arcopella casta in China.It is a new species based on its unique characteristics,which include small,fragile,inflated,translucent,and triangularly ovate-shaped shells with acuminated and convex umboes.As the first species described in China within the genus Abranda Iredale,1924,Abranda xui sp.nov.has internal ligaments and thin,fragile,and translucent elliptical shells with fine radials on the surface.In this study,we reorganized the species currently contained in the two genera Pinguitellina and Abranda and created keys to the known species.We believe that numerous collected bivalve specimens have been overlooked in the South China Sea,and to date,mollusk has not been adequately sampled.Thus,further exploration and analysis are required to understand species diversity in this area.

关 键 词：Abranda morphology Pinguitellina species diversity taxonomy Tellinidae 

分 类 号：Q959[生物学—动物学]