taxonID	type	description	language	source
939642CE6126517EB38B796B3452C67E.taxon	description	Figs 2, 3, 4; Table 2	en	Sun, Zhi-Xian, Li, Xue-Yuan, Li, Xue-Jian, Hao, Jun-Yuan, Sheng, Dong, Zhao, Ya-Hui (2025): Cobitis beijingensis, a new spined loach from northern China (Cypriniformes, Cobitidae). Zoosystematics and Evolution 101 (1): 55-67, DOI: 10.3897/zse.101.137363
939642CE6126517EB38B796B3452C67E.taxon	diagnosis	Diagnosis. The new species can be distinguished by the combination of the following characters: Lamina circularis on pectoral fin elongated, posterior margin slightly serrated; 14 – 18 (mode 15) prepelvic myotomes; pelvic fin inserted below 3 rd – 5 th branched dorsal-fin ray; total vertebrae 4 + 36 – 38 (mode 37); the second Gambetta line (L 2) does not exist or is fused with the first line (L 1).	en	Sun, Zhi-Xian, Li, Xue-Yuan, Li, Xue-Jian, Hao, Jun-Yuan, Sheng, Dong, Zhao, Ya-Hui (2025): Cobitis beijingensis, a new spined loach from northern China (Cypriniformes, Cobitidae). Zoosystematics and Evolution 101 (1): 55-67, DOI: 10.3897/zse.101.137363
939642CE6126517EB38B796B3452C67E.taxon	description	Description. Body elongated, laterally compressed. Dorsal body profile rising smoothly from nostrils to occiput, almost horizontal between occiput and dorsal-fin insertion, gradually sloping along dorsal-fin base, then horizontally extending to caudal-fin base. Maximum body depth at dorsal-fin origin, body depth 12.6 – 19.8 % of standard length. Lower surface of head flattened, abdomen rounded. Caudal peduncle short, depth almost equal to length, laterally compressed, with fleshy keels on dorsal and ventral sides. Head length greater than body depth (101.0 – 156.7 % of head length); snout elongated and blunt, snout length 36.9 – 50.1 % of head length; eye small, 11.2 – 20.3 % of head length, superior and laterally positioned, near gill opening than tip of snout; nostrils positioned close together, anterior nostril with short tube; interorbital region ridged and narrow. Anus positioned near anal-fin insertion. Mouth inferior, lips fleshy. Upper lip without affiliated apparatus; lower lip two lobed, medial side elongate-oval shaped. Three pairs of barbels: rostral barbels shorter than maxillary and mandibular barbels; maxillary barbels length equal to mandibular barbels length; mandibular barbels not or almost reaching under the anterior edge of the orbit. Body covered with tiny cycloid scales. Prepelvic myotomes 14 (3 specimen), 15 (26), 16 (7), 17 (2), 18 (1). Dorsal fin with three unbranched and six (1) or seven (39) branched rays; distal margin slightly convex, inserted nearer to caudal-fin base than snout. Pectoral fin with one unbranched and seven (3), eight (32) or nine (5) branched rays. Pelvic fin with one unbranched and five (1), six (38) or seven (1) branched rays, inserted below third to fifth branched dorsal-fin ray. Anal fin with 3 unbranched and 5 (40) branched rays; inserted nearer to caudal-fin base than to pelvic-fin insertion. Caudal fin slightly truncated, with one unbranched principle ray and seven branched principle rays on upper part and seven branched principle rays and one unbranched principal ray on lower part. Total vertebrae 4 + 36 (1), 37 (6), 38 (4). Suborbital spine bifurcated (Fig. 3), posteriorly reaching under the center of the orbit.	en	Sun, Zhi-Xian, Li, Xue-Yuan, Li, Xue-Jian, Hao, Jun-Yuan, Sheng, Dong, Zhao, Ya-Hui (2025): Cobitis beijingensis, a new spined loach from northern China (Cypriniformes, Cobitidae). Zoosystematics and Evolution 101 (1): 55-67, DOI: 10.3897/zse.101.137363
939642CE6126517EB38B796B3452C67E.taxon	distribution	Distribution. Based on our field collections and the historic specimens, Cobitis beijingensis is distributed in the Haihe River basin in northern China, including rivers in Beijing and the Baiyangdian Lake in Hebei Province. This species can be currently found in the Chaobaihe River system in Huairou and Miyun District, Beijing (Fig. 6).	en	Sun, Zhi-Xian, Li, Xue-Yuan, Li, Xue-Jian, Hao, Jun-Yuan, Sheng, Dong, Zhao, Ya-Hui (2025): Cobitis beijingensis, a new spined loach from northern China (Cypriniformes, Cobitidae). Zoosystematics and Evolution 101 (1): 55-67, DOI: 10.3897/zse.101.137363
939642CE6126517EB38B796B3452C67E.taxon	etymology	Etymology. The species name “ beijingensis ” was referred to the type locality of this species, Beijing, the capital city of China. The Chinese name for the new species is “ 北京花鳅 ”.	en	Sun, Zhi-Xian, Li, Xue-Yuan, Li, Xue-Jian, Hao, Jun-Yuan, Sheng, Dong, Zhao, Ya-Hui (2025): Cobitis beijingensis, a new spined loach from northern China (Cypriniformes, Cobitidae). Zoosystematics and Evolution 101 (1): 55-67, DOI: 10.3897/zse.101.137363
