Oreonectes guilinensis (Teleostei, Cypriniformes, Nemacheilidae), a new loach species from Guangxi, China Author Huang, Jin-Qing College of Life Science and Technology, Guangxi University, Nanning, China & Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China Author Yang, Jian Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Nanning Normal University, Nanning, China Author Wu, Zhi-Qiang College of Life Science and Technology, Guangxi University, Nanning, China wuzhiqiang@glut.edu.cn Author Zhao, Ya-Hui Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China zhaoyh@ioz.ac.cn text Journal of Fish Biology 2020 2019-11-28 96 1 111 119 http://dx.doi.org/10.1111/jfb.14191 journal article 294390 10.1111/jfb.14191 4fa73c17-df83-4cb9-bc54-2428ae6e1141 1095-8649 10981618

TABLE 2 Meristics and morphometrics of six species from the genus Oreonectes

Character	O. guilinensis sp. nov.		O. platycephalus		O. anopthalmus		O. guananensis		O. polystigmus		O. luochengensis
(Continues)
	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD
No. of specimen	8		10		3		6		11		5
Dorsal fin	7		7		7		7		7		7
Anal fin	5		7		5		5		5		5
Pectoral fin	9 – 10		9 – 10		10		11 – 12		10 – 11		11 – 12
Pelvic fin	6 – 7		7		4		7 – 8		6 – 7		7
Caudal fin	13 – 14		14 – 16		12		15 – 16		14 – 15		15 – 17
Lateral line pores	4 – 6		13 – 17		–		7 – 10		5 – 14		11 – 13
Standard length (L S, mm)	51.9 – 73.0	65.0 ± 6.1	46.2 – 72.5	52.3 ± 7.5	26.5 – 40.1	34.8 ± 7.3	53.0 – 76.6	63.9 ± 9.9	34.3 – 58.6	45.4 ± 8.3	66.8 – 73.9	71.6 ± 2.9
% L S
Body height	16.5 – 18.7	17.5 ± 0.8	11.5 – 15.8	13.6 ± 1.5	11.6 – 13.6	12.6 ± 1.0	15.1 – 18.3	16.5 ± 1.1	11.0 – 16.7	14.3 ± 1.7	14.6 – 17.2	16.3 ± 1.0
Maximum body height	17. – 20.0	18.7 ± 0.8	12.3 – 17.1	14.8 ± 1.7	12.8 – 14.2	13.4 ± 0.7	15.8 – 19.3	17.5 ± 1.2	13.9 – 19.4	16.3 ± 1.9	16.4 – 17.8	17.2 ± 0.5
Body width	14.0 – 16.7	15.5 ± 0.9	8.3 – 9.4	8.8 ± 0.3	9.6 – 11.8	10.5 ± 1.2	11.3 – 13.1	12.3 ± 0.6	6.5 – 12.6	8.5 ± 1.9	12.1 – 12.5	12.3 ± 0.2
Maximum body width	17.2 – 19.8	18.4 ± 0.9	10.6 – 15.4	13.0 ± 1.4	13.2 – 15.9	14.3 ± 1.4	13.9 – 16.8	15.0 ± 1.0	11.5 – 17.1	13.8 ± 1.7	14.8 – 16.0	15.4 ± 0.5
Body width at anus	11.5 – 13.5	12.4 ± 0.6	7.2 – 9.1	8.3 ± 0.6	7.9 – 10.3	9.2 ± 1.2	9.0 – 10.4	9.7 ± 0.5	5.3 – 10.1	7.0 ± 1.6	9.6 – 10.0	9.8 ± 0.2
Predorsal length	57.0 – 61.6	59.6 ± 0.6	57.3 – 61.0	59.4 ± 1.2	60.5 – 64.5	62.4 ± 2.0	56.7 – 58.0	57.3 ± 0.5	55.8 – 63.3	60.2 ± 2.3	56.0 – 58.0	58.3 ± 0.8
Dorsal-fin length	15.9 – 19.1	17.5 ± 1.0	17.6 – 19.9	19.1 ± 0.7	13.7 – 17.0	15.4 ± 1.6	15.7 – 18.7	17.1 ± 0.9	16.3 – 20.6	18.1 ± 1.2	17.7 – 19.1	18.6 ± 0.5
Dorsal-fin base length	6.6 – 10.2	9.0 ± 1.1	8.7 – 11.5	10.0 ± 0.7	9.4 – 10.8	9.9 ± 0.7	9.1 – 9.6	9.4 ± 0.2	8.6 – 12.1	10.2 ± 1.2	10.1 – 10.5	10.3 ± 0.2
Prepelvic length	54.7 – 59.0	56.5 ± 1.7	48.1 – 51.3	49.8 ± 1.0	58.5 – 61.3	59.6 ± 1.5	53.2 – 55.4	54.0 ± 0.8	50.4 – 55.6	53.6 ± 1.7	51.9 – 57.9	54.0 ± 2.4
Pelvic-fin length	12.0 – 13.9	13.2 ± 0.6	16.9 – 19.1	18.1 ± 0.7	9.9 – 10.8	10.3 ± 0.5	12.2 – 13.7	13.1 ± 0.5	12.9 – 15.9	13.9 ± 1.0	12.2 – 13.2	12.5 ± 0.4
Pelvic-fin base length	3.1 – 3.4	3.3 ± 0.1	3.5 – 5.7	4.2 ± 0.7	1.9 – 2.9	2.5 ± 0.5	3.3 – 3.7	3.5 ± 0.2	2.3 – 3.6	2.9 ± 0.5	3.0 – 3.7	3.3 ± 0.2
Pre-anus length	71.4 – 75.9	73.3 ± 1.5	63.8 – 70.5	67.8 ± 2.0	68.6 – 72.2	69.9 ± 2.0	68.9 – 71.8	70.6 ± 1.0	67.3 – 73.2	71.1 ± 1.6	68.4 – 73.5	70.9 ± 1.8
Pre-anal length	77.2 – 82.9	80.5 ± 1.9	72.7 – 79.0	75.7 ± 2.1	74.3 – 77.4	75.4 ± 1.7	755.9 – 78.1	77.0 ± 0.9	73.0 – 78.5	77.1 ± 1.7	75.0 – 79.4	77.8 ± 1.7
Anal fin length	14.0 – 16.0	15.0 ± 0.7	16.8 – 20.6	18.4 ± 1.3	11.7 – 15.3	13.4 ± 1.8	13.7 – 15.4	14.3 ± 0.8	14.3 – 19.9	15.8 ± 1.5	15.1 – 16.4	15.8 ± 0.5
Anal-fin base length	6.0 – 7.2	6.7 ± 0.4	7.8 – 10.7	8.9 ± 0.9	5.9 – 9.4	7.9 ± 1.8	6.8 – 8.4	7.4 ± 0.6	2.5 – 9.7	8.0 ± 2.0	7.3 – 7.7	7.4 ± 0.2
Prepectoral length	20.8 – 24.8	23.5 ± 1.3	19.6 – 23.4	21.6 ± 1.0	24.0 – 26.1	25.4 ± 1.2	20.3 – 22.6	21.0 ± 0.9	19.9 – 25.5	23.1 ± 1.8	19.2 – 20.9	19.8 ± 0.6
Pectoral-fin length	15.6 – 17.5	16.6 ± 0.7	16.8 – 20.4	18.7 ± 1.1	13.1 – 15.2	13.9 ± 1.1	15.5 – 16.6	16.1 ± 0.4	13.4 – 18.6	15.3 ± 1.7	15.8 – 17.2	16.6 ± 0.6
Pectoral-fin base length	3.1 – 4.5	3.7 ± 0.5	3.5 – 5.4	4.7 ± 0.6	3.6 – 5.0	4.3 ± 0.7	3.5 – 4.8	4.0 ± 0.5	2.8 – 5.1	3.5 ± 0.6	3.9 – 4.5	4.4 ± 0.3
Caudal-fin length	19.8 – 23.1	21.5	20.5 – 24.7	20.7 ± 1.5	13.6 – 19.1	15.9 ± 2.9	18.4 – 20.3	19.1 ± 0.8	13.5 – 23.1	19.1 ± 2.5	16.8 – 18.2	17.5 ± 0.5
Caudal-peduncle length	11.9 – 18.7	15.8	14.9 – 18.9	16.1 ± 1.1	17.3 – 18.2	17.7 ± 0.5	15.0 – 16.3	15.4 ± 0.5	14.2 – 16.5	15.2 ± 0.8	14.0 – 16.3	15.8 ± 0.8
Caudal-peduncle depth	10.5 – 11.7	11.1	8.0 – 12.1	10.8 ± 1.1	8.9 – 10.2	9.7 ± 0.6	9.4 – 10.9	10.3 ± 0.5	7.3 – 11.5	8.5 ± 1.4	9.2 – 10.3	9.8 ± 0.5
Head length (L H)	19.9 – 23.3	21.4	20.4 – 21.7	21.0 ± 0.4	24.3 – 25.4	24.9 ± 0.5	19.8 – 20.7	20.0 ± 0.3	16.6 – 24.9	22.4 ± 2.2	19.6 – 20.5	20.0 ± 0.4
	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD
% L H
Head height at eye	44.4 – 50.3	46.9 ± 2.2	39.1 – 46.2	42.2 ± 2.3	–	–	50.1 – 54.9	52 ± 2.0	37.9 – 47.4	41.7 ± 2.9	46.0 – 50.2	48.3 ± 1.8
Head height at nape	54.5 – 63.0	57.8 ± 3.6	45.2 – 53.3	49.8 ± 3.1	47.8 – 59.2	52.1 ± 6.2	59.7 – 64.4	61.8 ± 1.8	47.0 – 55.4	50.9 ± 3.2	56.2 – 68.1	61.0 ± 4.7
Head width at eye	57.3 – 71.3	64.2 ± 4.4	50.8 – 64.0	57.9 ± 3.9	–	–	66.7 – 71.1	69 ± 1.5	17.0 – 60.2	45.8 ± 11.4	59.472.8	65.1 ± 5.0
Maximum head width	76.5 – 83.6	79.7 ± 3.0	63.8 – 72.3	68.4 ± 3.2	62.3 – 77.7	70.6 ± 7.8	77.5 – 83.8	80.7 ± 2.0	57.2 – 69.9	63.0 ± 4.2	66.3 – 85.9	73.4 ± 7.6
Snout length	37.1 – 42.3	40.8 ± 1.7	37.8 – 45.3	41.7 ± 2.2	–	–	32.1 – 39.6	35.2 ± 2.5	32.6 – 40.9	36.9 ± 2.9	34.0 – 41.2	36.1 ± 2.9
Outer rostral barbel length	57.9 – 70.0	63.5 ± 4.0	47.655.2	52.3 ± 2.3	23.6 – 39.4	33.3 ± 8.5	61.8 – 78.6	72.9 ± 6.2	43.0 – 73.1	58.2 ± 8.0	47.8 – 63.6	54.7 ± 7.0
Maxillary barbel length	49.8 – 66.8	57.6 ± 4.9	43.7 – 48.8	45.8 ± 1.7	24.6 – 36.2	28.6 ± 6.6	58.0 – 71.2	62.6 ± 4.9	41.8 – 62.7	49.7 ± 6.2	45.2 – 60.2	50.7 ± 6.7
Postocular head length	43.5 – 52.5	48.8 ± 3.1	48.0 – 56.4	51.1 ± 2.8	–	–	44.3 – 51.2	47.6 ± 2.8	47.3 – 53.7	50.6 ± 1.9	44.6 – 52.7	47.1 ± 3.2
Eye diameter	9.7 – 14.1	11.6 ± 1.5	14.5 – 18.5	16.3 ± 1.6	–	–	13.4 – 15.9	14.6 ± 0.9	13.2 – 17.5	15.5 ± 1.6	11.4 – 12.5	12.0 ± 0.45
Interorbital width	40.5 – 44.3	42.1 ± 1.3	39.9 – 46.2	43.5 ± 2.4	–	–	45.8 – 50.1	48.0 ± 1.9	35.7 – 46.1	38.7 ± 3.6	39.0 – 41.2	40.2 ± 1.0
Length of anterior nostril tube and barbel	8.5 – 13.0	10.9 ± 1.8	13.4 – 19.0	16.2 ± 1.8	5.0 – 6.6	5.9 ± 0.8	11.8 – 15.2	13.3 ± 1.3	7.7 – 12.8	9.5 ± 1.7	12.3 – 14.3	13.3 ± 0.9
Pre-anterior nostril length	19.7 – 26.3	22.1 ± 2.3	15.0 – 21.1	18.3 ± 2.0	14.1 – 18.4	15.8 ± 2.2	17.0 – 19.0	18.1 ± 0.7	12.9 – 19.1	16.7 ± 2.0	18.8 – 19.7	19.2 ± 0.4
Distance between anterior and posterior nostrils	5.7 – 9.1	7.4 ± 1.2	4.7 – 77	6.2 ± 0.9	3.4 – 4.1	3.6 ± 0.4	3. 4 – 4.9	4.5 ± 0.6	5.3 – 7.8	6.5 ± 0.7	5.5 – 8.2	6.3 ± 1.1
Distance between posterior nostrils	31.3 – 37.6	34.4 ± 2.0	36. – 42.8	40.0 ± 1.8	38.2 – 41.2	39.8 ± 1.5	35.3 – 39.1	37.2 ± 15	31.2 – 37.8	34.8 ± 2.0	31.4 – 34.1	32.9 ± 1.0
Distance between eye and posterior nostril	4.8 – 7.2	6.0 ± 1.0	3.0 – 4.5	3.8 ± 0.5	–	–	1.7 – 4.4	3.1 ± 0.9	3.1 – 5.7	4.0 ± 0.8	3.3 – 4.0	3.7 ± 0.2