动物学研究 ›› 2019, Vol. 40 ›› Issue (4): 331-336.doi: 10.24272/j.issn.2095-8137.2019.049

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  • 收稿日期:2018-11-07 接受日期:2019-04-02 出版日期:2019-07-18 发布日期:2019-07-11

A new cave-dwelling blind loach, Triplophysa erythraea sp. nov. (Cypriniformes: Nemacheilidae), from Hunan Province, China

Tai-Fu Huang,Pei-Ling Zhang,Xing-Long Huang,Tao Wu,Xiao-Yan Gong,You-Xiang Zhang,Qing-Zhong Peng,Zhi-Xiao Liu()   

  1. College of Biology and Environmental Sciences, Jishou University, Jishou Hunan 416000, China
  • Received:2018-11-07 Accepted:2019-04-02 Online:2019-07-18 Published:2019-07-11
  • Contact: Zhi-Xiao Liu E-mail:zxliu1965@163.com
  • Supported by:
    This research was supported by the National Natural Science Foundation of China (31560130) and Learning Research & Innovative Experiment Project of Hunan Province (Xiangjiaotong [2018] No. 255-601)

Abstract:

A new blind loach species, Triplophysa erythraea sp. nov., from a karst cave in Hunan Province, central south China, is described based on morphology and cyt b gene sequencing. It can be distinguished from other species of Triplophysa by the following combination of characters: eyes absent; body scaleless and colorless; caudal-fin 17; maxillary barbel longest; fins transparent, compressed pectoral-fin reaching 2/3 distance between pectoral-fin and pelvic-fin origins; pelvic-fin and dorsal-fin origins relative; posterior chamber of airbladder well developed, long, oval, and dissociative.

Key words: Triplophysa erythraeasp. nov., Karst cave, Blind fish, Cyt b

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ItemHolotypeParatypesMean±SD
HY18022802HY18011301HY18022801
Total length (TL)105.9881.53109.3498.95±15.18
Standard length (SL)88.2268.4988.5881.76±11.50
Head length (HL)23.4418.4923.4421.79±2.86
Dorsal length16.4415.7218.1416.77±1.24
Pelvic length13.4010.7413.412.51±1.54
Pectoral length17.9614.6525.3519.32±5.48
Anal length13.729.6714.7312.71±2.68
Body depth/(SL) (%)13.5913.0016.3714.32±1.80
Predorsal length/(SL) (%)53.6352.6255.1453.80±1.27
Prepectoral length/(SL) (%)28.7126.1928.7127.87±1.45
Preanal length/(SL) (%)76.9175.6176.9176.48±0.75
Caudal-peduncle length/(SL) (%)18.1816.6718.1817.68±0.87
Caudal-peduncle depth/(SL) (%)7.737.739.188.21±0.84
Length of dorsal-fin base/(SL) (%)11.4111.3212.7711.83±0.81
Length of anal-fin base/(SL) (%)7.896.297.877.35±0.92
Length of pectoral-fin base/(SL) (%)5.074.535.074.89±0.31
Length of pelvic-fin base/(SL) (%)2.452.457.454.12±2.89
Upper jaw length/(SL) (%)5.605.606.695.96±0.63
Lower jaw length/(SL) (%)4.554.345.004.63±0.34
Mouth width/(SL) (%)6.696.697.787.05±0.63
Nose width/(HL) (%)17.3617.3618.3917.70±0.59
Outer rostral barbell length/(HL) (%)27.2227.2240.1831.54±7.48
Inner Rostral barbell length/(HL) (%)20.6916.6622.1719.84±2.85
Maxillary barbell length/(HL) (%)31.5331.5343.1935.42±6.73

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No.Species (GenBank accession No.)123
1New species (MG967615)
2T.lewangensis (KU987438)0.119
3T. xiangxiensis (KT751089)0.1270.089
4T. rosa (JF268621)0.1310.0990.096
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