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Issue: Vol. 4999 No. 3: 12 Jul. 2021
Type: Article
Published: 2021-07-12
DOI: 10.11646/zootaxa.4999.3.3
Page range: 228-242
Abstract views: 506
PDF downloaded: 26

Description of one new species of freshwater shrimp of the genus Caridina (Crustacea: Decapoda: Atyidae) from two karst caves of Northern Vietnam

Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
Museum fürNaturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstr. 43, D-10115 Berlin, Germany
Caridina namdat sp. nov. Bac Kan reduced eyes stygobiont Vietnam Crustacea

Abstract

A new species of atyid freshwater shrimp is described from two caves of Bac Kan Province, Northeast Vietnam, namely Caridina namdat sp. nov. This species can be distinguished from its congeners by a suite of morphological characters such as reduced eyes with short eyestalk, very short and unarmed rostrum, slender second pereiopod, elongated endopod of male first pleopod, and long appendix interna of the male second pleopod. Molecular phylogenetic data from the mitochondrial cytochrome oxidase subunit I (COI) and 16S ribosomal RNA genes also support the distinctiveness of the new species from all other examined species.

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