A new species in the genus Styracaster (Echinodermata: Asteroidea: Porcellanasteridae) from hadal depth of the Yap Trench in the western Pacific

被引：8

作者：

Zhang, Ruiyan ^{[1
]}

Zhou, Yadong ^{[1
]}

Lu, Bo ^{[1
]}

Wang, Chunsheng ^{[1
,2
]}

机构：

[1] State Ocean Adm, Inst Oceanog 2, Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Zhejiang, Peoples R China

[2] State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R China

来源：

ZOOTAXA | 2017年 / 4338卷 / 01期

关键词：

starfish; Porcellanasteridae; deep-sea; mud bottom; genetic distance; intraspecific difference; FAMILY PORCELLANASTERIDAE; STARFISH; MITOCHONDRIAL;

D O I：

10.11646/zootaxa.4338.1.8

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Styracaster yapensis sp. nov. is reported from the Yap Trench in the western Pacific from hadal depths between 6377-6575 m, which is among the deepest known occurrence of a species in this genus. It is distinguished from other Styracaster species by its abactinal surface armature and rudimentary cribriform organs. This paper provides a description of the new species along with detailed photos. The intraspecific differences between the holotype and paratype of the new species are examined with molecular and morphological approaches.

引用

页码：153 / 162

页数：10

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