Abstract

The study is part of ZS’s PhD studies financed by the Faculty of Science, University of Copenhagen as well as SS’s PhD studies financed by Applied Taxonomic Research Center of Khon Kaen University, Southeast Asia Biodiversity Research Institute, the Chinese Academy of Sciences (Y4ZK111B01), and the National Natural Science Foundation of China (31702011).

Highlights

  • The suborder Laevicaudata Linder, 1945, or “smooth clam shrimps”, is a small group of less than 45 described species divided into three genera namely, Lynceus Müller, 1776, Lynceiopsis Daday, 1912, and Paralimnetis Gurney, 1931

  • We explore the validity of DNA barcoding methods for smooth clam shrimps by obtaining new COX1 barcoding data for 10 Laevicaudata taxa, including the new species described here

  • From Mongolia is mentioned in the Laevicaudata catalogus (Rogers and Olesen, 2016) but with no material reported to be deposited, and no description or types designated, it is uncertain whether it is the same species as the one described here

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Summary

Introduction

The suborder Laevicaudata Linder, 1945, or “smooth clam shrimps”, is a small group of less than 45 described species divided into three genera namely, Lynceus Müller, 1776, Lynceiopsis Daday, 1912, and Paralimnetis Gurney, 1931. COX1 barcodes provide supplementary diagnostic characters, allowing for the identification of potential new species, and establishing molecular thresholds for species delimitation. It simplifies assignment of biological material to species already described and classified and allows for specimen identification regardless of life stage (Palero et al, 2011; Torres et al, 2014). A new species of smooth clam shrimp from Mongolia and Northeast China with uniquely modified “middle” thoracopods is described. We explore the validity of DNA barcoding methods for smooth clam shrimps by obtaining new COX1 barcoding data for 10 Laevicaudata taxa, including the new species described here

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