A new freshwater shrimp species of the genus Caridina (Crustacea, Decapoda, Atyidae) from Quang Ninh province, Northeast Vietnam

By

Le, Hung Anh
Rintelen, Thomas von
Phan, Thi Yen
Do, Van Tu, 1980-

Type

Article

Date of Publication

2025-8-26

Original Publication

Zoosystematics and evolution

Volume

101

Series / Issue

Issue: 4

Pages

1601--1611

Subjects

Caridina , Distribution , diversity , endemism , Freshwater fauna , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia Pensoft

Identifiers

DOI: https://doi.org/10.3897/zse.101.155668

 

Abstract

A new species of atyid freshwater shrimps from Quang Ninh province, Northeast Vietnam is described. Caridina baitulongsp. nov. can be distinguished from its congeners by a suite of morphological characters such as the rostrum reaching to the middle or end of the second segment of antennular peduncle, stylocerite reaching to the end or sometimes slightly overreaching distal end of basal segment of antennular peduncle, endopod of male first pleopod sub-rectangular, appendix interna of male second pleopod extending about 0.7 times length of appendix masculina. Molecular phylogenetic analysis of the mitochondrial cytochrome oxidae subunit (COI) and 16S ribosomal RNA (16S) genes also clearly support the distinctiveness of the new species from all other examined species, while also suggesting high intra-specific divergence.