taxonID	type	description	language	source
844B14237CE15E31BEDB6B45CC016269.taxon	type_taxon	Type species. Postolata guangxiensis Dai et al., 2023.	en	Liu, Lili, Zhang, Liping, Hou, Kaiyu, Ning, Liyang, Wu, Ruiwen (2024): Addition to the known diversity of Chinese freshwater mussels: integrative description of a new species of Postolata Dai et al., 2023 (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 100 (3): 769-778, DOI: 10.3897/zse.100.126069
AE6B0B6478A8576796E7818FCE1C6D03.taxon	description	Fig. 2	en	Liu, Lili, Zhang, Liping, Hou, Kaiyu, Ning, Liyang, Wu, Ruiwen (2024): Addition to the known diversity of Chinese freshwater mussels: integrative description of a new species of Postolata Dai et al., 2023 (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 100 (3): 769-778, DOI: 10.3897/zse.100.126069
AE6B0B6478A8576796E7818FCE1C6D03.taxon	description	Description. Shell elongated, irregularly rectangular, slightly thickened, moderately inflated; anterior margin rounded and short; ventral margin nearly straight; posterior margin wide and long; posterior slope significantly prominent; dorsal margin nearly straight, with an upward tilt angle; umbo located at 1 / 4 of the shell length and sculptured with wavy ridges; epidermis brown with greenish tinge; shell surface sculptured with fine concentric growth lines (Fig. 2; Table 3). Anterior adductor muscle attachment oblong, little deep, and smooth; posterior adductor muscle attachment round to oval, shallow, and smooth; anterior retractor muscle attachment completely integrated with anterior adductor muscle attachment; posterior retractor muscle attachment irregularly round and fused with the posterior adductor muscle attachment; mantle muscle attachment obvious. Hinge weakly developed; anterior tooth extremely small, posterior tooth small, thin, and pyramidal in the left valve; anterior tooth upright pyramidal; posterior tooth degenerate and merge into the lateral teeth in the right valve; there is one short lateral tooth of both shells; nacre-bule-white (Fig. 2; Table 3). Papillae in the incurrent aperture short and cylindrical, arranged in two rows; papillae in the excurrent aperture weakly developed, sparsely arranged in one row; and the pigmentation of the incurrent and excurrent aperture significant; the size of inner gills exceeds that of outer gills; labial palps medium-thick, flat elliptical (Fig. 3; Table 3).	en	Liu, Lili, Zhang, Liping, Hou, Kaiyu, Ning, Liyang, Wu, Ruiwen (2024): Addition to the known diversity of Chinese freshwater mussels: integrative description of a new species of Postolata Dai et al., 2023 (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 100 (3): 769-778, DOI: 10.3897/zse.100.126069
AE6B0B6478A8576796E7818FCE1C6D03.taxon	etymology	Etymology. This species’ name is dedicated to its collection location, the Long River in Hechi City, Guangxi Province, China. For the common name, we recommend “ Longjiang Rear-wide Mussel ” (English) and “ Long Jiang Hou Ju Bang ” (龙江后矩蚌) (Chinese).	en	Liu, Lili, Zhang, Liping, Hou, Kaiyu, Ning, Liyang, Wu, Ruiwen (2024): Addition to the known diversity of Chinese freshwater mussels: integrative description of a new species of Postolata Dai et al., 2023 (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 100 (3): 769-778, DOI: 10.3897/zse.100.126069
AE6B0B6478A8576796E7818FCE1C6D03.taxon	distribution	Distribution. Long River at Hechi City, Guangxi Province, China.	en	Liu, Lili, Zhang, Liping, Hou, Kaiyu, Ning, Liyang, Wu, Ruiwen (2024): Addition to the known diversity of Chinese freshwater mussels: integrative description of a new species of Postolata Dai et al., 2023 (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 100 (3): 769-778, DOI: 10.3897/zse.100.126069
