Tritonia iocasica sp.nov.,a new tritoniid species from a seamount in the tropical Western Pacific(Heterobranchia:Nudibranchia)

IOCAS-IR

	Tritonia iocasica sp.nov.,a new tritoniid species from a seamount in the tropical Western Pacific(Heterobranchia:Nudibranchia)
	Shuqian ZHANG; Suping ZHANG
发表期刊	Journal of Oceanology and Limnology
ISSN	2096-5508
	2021-09-15
出版年	2021
卷号	v.39 期号:05 页码:235-247
文献类型	CNKI期刊论文
摘要	During an expedition to a seamount at Caroline Plate in the tropical Western Pacific,a new species of Tritonia was sampled from the upper bathyal zone at depth of 970-1 262 m.This new species,Tritonia iocasica sp.nov.,represents the first tritoniid nudibranch known to feed on octocoral of the family Melithaeidae.The species is up to 120 mm in length,pinkish in color;with the rhinophoral sheath divided into several petaliform extensions;veil with,about 18 elongate digitiform processes;notal margin with17-19 pairs of secondary gills;anus located below the 5~(th) and 6~(th) secondary gills,and the genitalia below the 3~(rd) secondary gill on the right side of the body.Based on these external features,T.iocasica sp.nov.can be dearly distinguished from all previously described members of the genus.Phylogenetic analyses of two mitochondrial(COI,16 S rRNA) and a nuclear(H3) genes using Bayesian inference,maximum likelihood,and species delimitation analysis also support the separation of T.iocasica sp.nov.from its congeners.
关键词	Tritoniidae Mariana Trench upper bathyal zone Melithaeidae
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A006;
CNKI专题名称	生物学;
分类号	Q959
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the Science & Technology Basic Resources Investigation Program of China (No.2017FY100804) ; the Key Program of National Natural Science Foundation of China (No.41930533) ; the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDB42000000) ; the Major Program of National Natural Science Foundation of China (No.42090044) ; the Senior User Project of R/V Kexue (No.Kexue2020G02)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/187672
专题	中国科学院海洋研究所
作者单位	1.LaboratoryofMarineOrganismTaxonomyandPhylogeny,InstituteofOceanology,ChineseAcademyofSciences 2.CenterforOceanMega-Science,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Shuqian ZHANG,Suping ZHANG. Tritonia iocasica sp.nov.,a new tritoniid species from a seamount in the tropical Western Pacific(Heterobranchia:Nudibranchia). 2021.