Description of the first stygobiotic species of the atyid shrimp genus Sinodina (Decapoda, Caridea, Atyidae) from Yunnan Province, China

By

Jiang, Xuan-Kong
Zhou, Jia-Jun
Wang, Jianguo
Chen, Wenlong
Chen, Huiming

Type

Article

Date of Publication

2023

Original Publication

ZooKeys

Volume

1186

Pages

123--137

Subjects

diversity , Morphology , new species , Phylogeny , stygobiont , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1186.112657

 

Abstract

​SinodinaLiang & Cai, 1999, a genus of atyid shrimp, is endemic to China and distributed only in the Yunnan-Guizhou Plateau. We describe here the thirteen species ofSinodina, and the first cave-dweller of the genus,Sinodina ashimasp. nov., collected from a limestone cave in Shilin County, Yunnan Province. This species can be distinguished from its congeners by the completely degraded pigment and eyes, the extremely long rostrum, the rostral formula and the absence of sexual dimorphism of the third and fourth pereiopods. A phylogenetic analysis based on four genes (COI, 16S, 18S, H3) shows that the new species strongly clustered with the type species of this genus,Sinodina gregoriana(Kemp, 1923), supporting the generic status of this new species.