Description of a new cave-dwelling species of Claea (Teleostei, Cypriniformes, Nemacheilidae) from the Yangtze River basin in Sichuan, southern China Author Lei, Hao-Tian https://orcid.org/0009-0002-5166-6614 College of Plant Protection, China Agricultural University, Beijing 100093, China Author He, Li 0000-0002-4597-3442 State Grid Tianfu New Area Electric Power Supply Company, Chengdu 610094, Sichuan, China & Sichuan Cave Exploration Team, No. 66, 5 th Shuangcheng Road, Chenghua District, Chengdu 610051, Sichuan, China Author Huang, Jun-Hao The Museum of Aquatic Organisms, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, China Author Zhou, Jia-Jun 0000-0003-1038-1540 Zhejiang Forest Resource Monitoring Center, Hangzhou 310020, Zhejiang, China & Zhejiang Forestry Survey Planning and Design Company Limited, Hangzhou 310020, Zhejiang, China Author He, De-Kui 0000-0002-4001-826X The Museum of Aquatic Organisms, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, China text Zoosystematics and Evolution 2025 2025-03-26 101 2 681 695 journal article 308814 10.3897/zse.101.146469 65e4ff6c-a4c0-41b2-9210-df30395522a6 DA08B820-ACC8-4F3D-B098-E446674360C4

Table 2. Morphometric measurements for Claea scet, sp. nov, C. dabryi, C. minibarba and C. wulongensis.

Characteristics	Claea scet (n = 14)				Claea dabryi (n = 31)			Claea minibarba (n = 7) (Zhang et al. 2024)			Claea wulongensis (n = 8) (Guo et al. 2021)
	Holotype	Range	Mean	S. D.	Range	Mean	S. D.	Range	Mean	S. D.	Range	Mean	S. D.
Scales		Absent		/	Absent		/	Absent		/	Absent		/
Lateral line		Complete		/	Complete		/	Complete		/	Complete		/
Dorsal fin rays		III, 8–9	III, 8	/	III, 7–8	III, 7	/	III, 8	III, 8	/	III, 8	III, 8	/
Anal fin rays		III, 5–6	III, 5	/	II, 5	II, 5	/	II, 5	II, 5	/	I, 5	I, 5	/
Pectoral fin rays		I, 10	I, 10	/	I, 8–9	I, 8	/	I, 10	I, 10	/	I, 8–9	I, 8–9	/
Pelvic fin rays		I, 5–6	I, 6	/	I, 5–6	I, 6	/	I, 6	I, 6	/	I, 5–7	I, 5–7	/
Caudal fin rays		2 + 16	2 + 16	/	2 + 15–17	2 + 16	/	2 + 16	2 + 16	/	2 + 16	2 + 16	/
Standard length (SL, mm)	51.3	34.2–58.9	50.9	4.7	37.6–88.5	60.5	14.4	48.8–69.9	62.6	6.6	49.0–67.2	55.7	6.2
In percentage of SL (%)
Head Length	24.6	20.8–25.5	23.4	1.4	20.4–24.8	23.8	1.0	21.1–23.3	21.9	1.0	20.4–23.5	22.6	1.0
Body depth	13.5	10.1–13.6	11.7	1.1	9.6–15.0	12.5	1.4	14.7–17.6	15.9	1.0	9.3–13.6	12.1	1.3
Predorsal length	54.6	50.0–56.3	54.0	2.0	49.0–59.1	52.9	2.0	50.5–54.0	52.4	1.3	50.4–54.2	51.9	0.9
Prepelvic length	51.7	50.2–56.0	53.6	1.6	47.1–53.1	49.8	1.6	47.7–50.6	49.8	1.6	48.3–50.9	49.7	0.9
Preanal length	77.0	73.4–77.9	75.9	1.1	71.6–78.4	74.5	1.7	72.7–75.2	73.9	1.0	71.5–77.7	73.4	1.8
Dorsal-fin height	11.8	9.4–19.3	13.6	3.9	16.1–22.2	18.8	1.3	15.8–18.1	16.8	0.8	15.0–19.8	16.2	1.5
Dorsal-fin base length	12.0	8.4–12.5	11.1	1.0	9.4–13.3	11.3	1.0	10.8–12.3	11.6	0.6	10.7–13.4	12.4	0.9
Anal-fin height	8.0	7.0–8.4	7.7	0.4	13.8–20.0	16.4	1.4	13.6–15.7	14.8	0.7	12.4–16.5	14.5	1.3
Anal-fin base length	9.1	8.4–9.6	8.3	0.8	5.6–10.6	8.0	1.0	7.8–9.0	8.1	0.4	6.6–8.2	7.4	0.6
Pelvic-fin length	14.9	12.2–15.5	13.8	1.0	13.3–17.6	14.9	0.9	12.5–15.1	13.8	0.8	12.5–14.5	13.2	0.6
Pectoral-fin length	20.1	16.7–22.0	19.1	1.2	18.3–22.3	17.6	1.4	15.0–17.6	16.8	0.9	15.6–18.4	17.6	1.0
Caudal-fin length	17.8	15.7–20.5	17.9	1.7	17.4–23.4	20.0	1.4	15.2–18.1	17.2	1.0	15.9–20.8	18.1	1.3
Caudal-peduncle length (CPL)	16.1	14.4–18.9	15.9	1.2	15.4–22.3	17.9	1.4	18.0–20.5	19.2	1.0	14.2–20.7	16.6	1.2
Caudal-peduncle depth (CPD)	8.2	5.5–8.5	7.0	0.9	5.5–10.3	8.3	1.0	9.5–11.7	10.7	0.7	7.6–9.4	8.5	0.7
In percentage of HL (%)
Head depth	44.4	40.4–56.1	45.6	4.4	39.6–52.0	44.9	3.0	55.5–59.4	57.5	1.6	45.3–54.2	50.6	2.9
Head width	60.3	51.6–77.0	59.8	7.2	45.9–59.7	53.4	3.6	61.5–68.0	64.0	2.1	55.7–65.8	62.4	3.5
Snout length	40.2	28.6–44.7	37.8	5.4	35.7–45.2	41.0	2.5	42.3–46.3	45.0	1.3	38.9–45.0	41.9	1.9
Eye diameter	5.6	3.8–5.9	5.1	0.9	13.7–23.3	17.8	2.6	15.8–18.4	16.9	0.9	11.1–19.1	17.0	2.1
Interorbital width	27.1	18.3–31.9	25.6	4.3	22.8–26.3	27.3	2.5	30.3–36.3	32.6	2.2	38.5–43.1	41.3	1.5
Maxillary barbel length	25.4	22.4–34.9	26.0	3.5	29.8–47.4	34.9	3.9	21.5–29.6	26.9	2.7	21.8–35.9	29.8	3.2
Inner rostral barbel length	17.1	11.5–20.4	16.3	2.5	15.6–24.7	20.2	2.4	16.0–21.7	18.8	2.5	16.5–23.4	21.6	1.2
Outer rostral barbel length	26.8	23.0–32.8	27.5	3.5	30.2–47.5	37.9	3.9	22.1–28.0	25.1	2.4	21.4–41.5	32.4	4.5
CPD / CPL (%)	51.2	34.4–52.8	44.2	5.7	33.7–53.4	46.5	4.3	50.8–61.2	55.6	3.7	44.3–57.4	51.2	4.5