 |
| Caridina baitulong Anh, von Rintelen, Yen & Tu, 2025 |
Abstract
A new species of atyid freshwater shrimps from Quang Ninh province, Northeast Vietnam is described. Caridina baitulong sp. 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.
Key Words: Caridina, distribution, diversity, endemism, Freshwater fauna, taxonomy
Family Atyidae De Haan, 1849
Genus Caridina H. Milne Edwards, 1837
Caridina baitulong sp. nov.
 |
| A, B. Live coloration of Caridina baitulong sp. nov. paratypes (IB-FS 012), collected in Quang Ninh Province. |
Le Hung Anh, Thomas von Rintelen, Phan Thi Yen and Do Van Tu. 2025. A New Freshwater Shrimp Species of the Genus Caridina (Crustacea, Decapoda, Atyidae) from Quang Ninh province, Northeast Vietnam. Zoosystematics and Evolution. 101(4): 1601-1611. DOI: doi.org/10.3897/zse.101.155668
