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

doi:10.1007/s00343-021-0408-3

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	Tritonia iocasica sp. nov., a new tritoniid species from a seamount in the tropical western Pacific (Heterobranchia: Nudibranchia)
	Zhang, Shuqian 1,2; Zhang, Suping 1,2
刊名	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2021-08-12
页码	13
关键词	Tritoniidae Mariana Trench upper bathyal zone Melithaeidae
ISSN号	2096-5508
DOI	10.1007/s00343-021-0408-3
通讯作者	Zhang, Shuqian(zsqtaxon@qdio.ac.cn) ; Zhang, Suping(museum@qdio.ac.cn)
英文摘要	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 with 17-19 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 clearly distinguished from all previously described members of the genus. Phylogenetic analyses of two mitochondrial (COI, 16S 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.
资助项目	Science & Technology Basic Resources Investigation Program of China[2017FY100804] ; Key Program of National Natural Science Foundation of China[41930533] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Major Program of National Natural Science Foundation of China[42090044] ; Senior User Project of R/V Kexue[Kexue2020G02]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000684088300010
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/175986]
专题	海洋研究所_海洋生物分类与系统演化实验室
通讯作者	Zhang, Shuqian; Zhang, Suping
作者单位	1.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shuqian,Zhang, Suping. Tritonia iocasica sp. nov., a new tritoniid species from a seamount in the tropical western Pacific (Heterobranchia: Nudibranchia)[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:13.
APA	Zhang, Shuqian,&Zhang, Suping.(2021).Tritonia iocasica sp. nov., a new tritoniid species from a seamount in the tropical western Pacific (Heterobranchia: Nudibranchia).JOURNAL OF OCEANOLOGY AND LIMNOLOGY,13.
MLA	Zhang, Shuqian,et al."Tritonia iocasica sp. nov., a new tritoniid species from a seamount in the tropical western Pacific (Heterobranchia: Nudibranchia)".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):13.