Caridina stellata, a new species of atyid shrimp (Decapoda, Caridea, Atyidae) with the male description of Caridina cavernicola Liang & Zhou, 1993 from Guangxi, China

被引:2
|
作者
Guo, Guo-Cai [1 ]
Chen, Qing-Hua [2 ]
Chen, Wen-Jian [3 ]
Cai, Chao-Huang [4 ]
Guo, Zhao-Liang [1 ]
机构
[1] Foshan Univ FU, Sch Life Sci & Engn, Dept Anim Sci, Foshan 528231, Guangdong, Peoples R China
[2] Minist Ecol & Environm, South China Inst Environm Sci, Guangzhou 510520, Guangdong, Peoples R China
[3] South China Agr Univ, Coll Marine Sci, Guangzhou 510642, Peoples R China
[4] Hunan Yuanling Anim Husb & Fishery Affairs Ctr, 13 Jinshui Rd, Yuanling County 419600, Hunan, Peoples R China
关键词
COI and 16S rRNA; ecology; habitat; levels of threat; new species; south-western China; H. MILNE EDWARDS; SOUTHERN CHINA; CRUSTACEA; PROVINCE; GUANGDONG; ISLAND;
D O I
10.3897/zookeys.1104.81836
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Caridina stellata sp. nov. is described from streams in Guangxi, south-western China. The new species clearly belongs to "Caridina serrata group" of the genus and shows a morphological similarity with C. cantonensis Yu, 1938, C. serrata Stimpson, 1860 and C. pacbo Do et al. 2020. Caridina stellata is distinguished from congeners, based on differences in its male first pleopod and appendix masculina morphology, along with COI and 16S rRNA molecular evidence. The first pleopod endopod in male is rectangle, about 0.70 x length of exopod, about 3.7-3.9 x as long as proximally wide, inner margin concave, bearing nearly equal spine setae, outer margin bearing nearly equal long and dense spine setae; appendix interna well developed, arising from distal 1/5 of endopod, reaching to end of endopod, with cincinuli distally. The new species displays a unique and brightly coloured pattern and, therefore, can be easily recognised in However, the description was based exclusively on two females. We have collected specimens of both sexes near the type locality and describe herein the previously unknown male and present morphological data on females. Data on the habitat, ecology and levels of threat of the two species are provided and suggest that they should be as vulnerable (VU) under the current IUCN Criteria.
引用
收藏
页码:177 / 201
页数:25
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