A new genus and species of shrimp(Crustacea:Axiidea:Axiidae)from the Caroline Ridge,Northwest Pacific

作     者：Qi KOU Gary C.B.POORE Xinzheng LI Qi KOU;Gary C.B.POORE;Xinzheng LI

作者机构：Institute of OceanologyChinese Academy of SciencesQingdao 266071China Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao266071China Laboratory for Marine Biology and BiotechnologyPilot NationalLaboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of SciencesBeijing 100049China Museums VictoriaPO Box 666MelbourneVic.3001Australia 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2021年第39卷第5期

页      面：1830-1840页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学] 

基　　金：the Science&Technology Basic Resources Investigation Program of China(No.2017FY100804) the Natural Science Foundation of China(Nos.41930533,41876178) the National Key R&D Program of China(No.2018YFC0309804) the China Ocean Mineral Resources Research and Development Association Program(Nos.DY135-E2-1-02,DY135-E2-3-04) 

主　　题：Carolinaxius kexuae gen.et sp.nov. taxonomy molecular evidence deep-sea seamount 

摘      要：A new genus and species of axiid shrimp,Carolinaxius kexuae *** *** described and illustrated based on a single specimen collected from an unnamed seamount in the Caroline Ridge,Northwest *** both chelipeds are mis sing,the specimen can be distinguished from other axiid genera by a combination of characteristics:narrowly triangular ro strum;median carina and lateral gastric carina each with one prominent tooth;submedian gastric carinae converging po steriorly,with teeth;cornea weakly pigmented,eyestalk with acute distome sial tooth on dorsal surface;male pleopod 1 two-articled;pleopod 2 with appendix interna and appendix masculina;pleopods 3-5 with appendix *** molecular phylogeny suggests the new genus is most closely related to another recently described genus living inside hexactinellid sponges on seamounts in the Indian Ocean,Montanaxius Dworschak,***,it differs from Montanaxius in the shape of the rostrum,the arrangement of teeth on the carapace,and the shape of the ***,the significant molecular differences support the two belonging to different genera.