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

KOU Qi; POORE Gary C. B.; LI Xinzheng

doi:10.1007/s00343-021-0446-x

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

Updated：2023-04-27

- A new genus and species of shrimp (Crustacea: Axiidea: Axiidae) from the Caroline Ridge, Northwest Pacific
- Journal of Oceanology and Limnology Vol. 39, Issue 5, Pages: 1830-1840(2021)
- Affiliations：
  
  1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  2.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
  3.Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
  4.University of Chinese Academy of Sciences, Beijing 100049, China
  5.Museums Victoria, PO Box 666, Melbourne, Vic. 3001, Australia
- Author bio：
  
  Xinzheng LI, E-mail: lixzh@qdio.ac.cn
- Funds：
- DOI：10.1007/s00343-021-0446-x
  CLC：
- Received：27 November 2020，
  
  Accepted：19 February 2021，
  
  Online First：12 April 2021，
  
  Published：2021-09
- Accepted：
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KOU Qi, POORE Gary C. B., LI Xinzheng. A new genus and species of shrimp (Crustacea: Axiidea: Axiidae) from the Caroline Ridge, Northwest Pacific[J]. Journal of Oceanology and Limnology, 2021, 39(5): 1830-1840.
DOI：

KOU Qi, POORE Gary C. B., LI Xinzheng. A new genus and species of shrimp (Crustacea: Axiidea: Axiidae) from the Caroline Ridge, Northwest Pacific[J]. Journal of Oceanology and Limnology, 2021, 39(5): 1830-1840. DOI： 10.1007/s00343-021-0446-x.

摘要

Abstract

A new genus and species of axiid shrimp

Carolinaxius kexuae

gen. et sp. nov. is described and illustrated based on a single specimen collected from an unnamed seamount in the Caroline Ridge

Northwest Pacific. Although both chelipeds are missing

the specimen can be distinguished from other axiid genera by a combination of characteristics: narrowly triangular rostrum; median carina and lateral gastric carina each with one prominent tooth; submedian gastric carinae converging posteriorly

with teeth; cornea weakly pigmented

eyestalk with acute distomesial tooth on dorsal surface; male pleopod 1 two-articled; pleopod 2 with appendix interna and appendix masculina; pleopods 3-5 with appendix interna. The 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

2016

Dworschak

2016

. However

it differs from

Montanaxius

in the shape of the rostrum

the arrangement of teeth on the carapace

and the shape of the eyestalk. Besides

the significant molecular differences support the two belonging to different genera.

关键词

Keywords

references

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