taxonID	type	description	language	source
E9E563DE1CC65A38A82323A53059AE9E.taxon	description	Fig. 2	en	Dai, Yu-Ting, Chen, Zhong-Guang, Chen, Hu, Niu, Bo-Wen, Jia, Ding-Chao, Xie, Tian-Xiang, Xiong, Liu-Feng, Wu, Xiao-Ping, Peng, Mo (2026): A new species of Cristaria Schumacher, 1817 (Bivalvia, Unionidae) from Sichuan, China. Zoosystematics and Evolution 102 (1): 87-95, DOI: 10.3897/zse.102.173182
E9E563DE1CC65A38A82323A53059AE9E.taxon	diagnosis	Diagnosis. Shell elongated triangle to irregular rectangle, inflated, very thin, fragile, with a maximum length of about 100 mm. Postdorsal wing small and low.	en	Dai, Yu-Ting, Chen, Zhong-Guang, Chen, Hu, Niu, Bo-Wen, Jia, Ding-Chao, Xie, Tian-Xiang, Xiong, Liu-Feng, Wu, Xiao-Ping, Peng, Mo (2026): A new species of Cristaria Schumacher, 1817 (Bivalvia, Unionidae) from Sichuan, China. Zoosystematics and Evolution 102 (1): 87-95, DOI: 10.3897/zse.102.173182
E9E563DE1CC65A38A82323A53059AE9E.taxon	description	Description. Shell medium size, thin, inflated, elongated, glossy, opaque. Post-dorsal wing small and low. Anterior small, rounded, and short; posterior expanded, wide, and long. Dorsal margin slightly curved downwards and truncated in behind; ventral margin weakly curved or retuse. Umbo inflated, slightly higher the hinge line, located at 1 / 4 of the dorsal margin, with concentric square carving. Periostracum yellowish green to brown with thin growth lines with a shallow sulcus in the middle of the dorsal margin. Growth lines arranged in irregular concentric circles. Hinge short. Ligament short and strong. Beak cavities shallow, open. Mantle attachment scars on the pallial line indistinct. Anterior adductor muscle scars oval, shallow, smooth; posterior adductor muscle scars oval, smooth. Pseudocardinal teeth completely degenerates and disappears. Lateral teeth of both valves short and thin. Nacre light white. Mantle light brown. aperture margins black, papillae of the excurrent aperture highly vestigial, papillae of the incurrent aperture weak. Gills light brown, inner gills slightly longer and wider than outer gills. Labial palpsrown, irregular triangle, distally pointed. Visceral mass grayish white. Foot grayish white.	en	Dai, Yu-Ting, Chen, Zhong-Guang, Chen, Hu, Niu, Bo-Wen, Jia, Ding-Chao, Xie, Tian-Xiang, Xiong, Liu-Feng, Wu, Xiao-Ping, Peng, Mo (2026): A new species of Cristaria Schumacher, 1817 (Bivalvia, Unionidae) from Sichuan, China. Zoosystematics and Evolution 102 (1): 87-95, DOI: 10.3897/zse.102.173182
E9E563DE1CC65A38A82323A53059AE9E.taxon	description	Measurements. Holotype: shell length 95.1 mm, height 54.9 mm, width 42.0 mm. Paratypes: shell length 62.5 – 105.9 mm, height 41.8 – 61.9 mm, width 25.0 – 42.8 mm (Table 3).	en	Dai, Yu-Ting, Chen, Zhong-Guang, Chen, Hu, Niu, Bo-Wen, Jia, Ding-Chao, Xie, Tian-Xiang, Xiong, Liu-Feng, Wu, Xiao-Ping, Peng, Mo (2026): A new species of Cristaria Schumacher, 1817 (Bivalvia, Unionidae) from Sichuan, China. Zoosystematics and Evolution 102 (1): 87-95, DOI: 10.3897/zse.102.173182
E9E563DE1CC65A38A82323A53059AE9E.taxon	etymology	Etymology. The species is named after Yu-Chen Wang, who first discovered it.	en	Dai, Yu-Ting, Chen, Zhong-Guang, Chen, Hu, Niu, Bo-Wen, Jia, Ding-Chao, Xie, Tian-Xiang, Xiong, Liu-Feng, Wu, Xiao-Ping, Peng, Mo (2026): A new species of Cristaria Schumacher, 1817 (Bivalvia, Unionidae) from Sichuan, China. Zoosystematics and Evolution 102 (1): 87-95, DOI: 10.3897/zse.102.173182
E9E563DE1CC65A38A82323A53059AE9E.taxon	distribution	Distribution and ecology. Known from the type locality only (Fig. 1). Living in the pebble-bottom sections of the cold and flowing tributaries with seasonal floods, along with Pseudocuneopsis sp., Nodularia sp., and Ptychorhynchus sp. This species is considered to have a small population, as evidenced by multiple surveys that revealed a narrow distribution and a scarcity of live specimens.	en	Dai, Yu-Ting, Chen, Zhong-Guang, Chen, Hu, Niu, Bo-Wen, Jia, Ding-Chao, Xie, Tian-Xiang, Xiong, Liu-Feng, Wu, Xiao-Ping, Peng, Mo (2026): A new species of Cristaria Schumacher, 1817 (Bivalvia, Unionidae) from Sichuan, China. Zoosystematics and Evolution 102 (1): 87-95, DOI: 10.3897/zse.102.173182
