taxonID	type	description	language	source
03E48789FFF0FFB2FF71A5D033CBF986.taxon	description	LM: Observations of living cells indicate that each cell contains two plastids. Rectangular cells are interconnected via one or both sides of the valve face, forming zigzag or straight-chain colonies (Figs 1 I, J). Valve length ranges from 7.8 to 9.2 μm and width ranges from 2.6 to 3.9 μm. LM reveals that valve outline is linear-elliptical, with the broad and lanceolate central area. Striae are clearly visible, oriented-perpendicular to the sternum, with 19 - 22 in 10 μm, while the areolae in apical pore fields at both ends are not visible (Figs A – H). SEM: The valve outline is linear-elliptical with rounded ends (Fig. 2 A). The valve is flat, lacking marginal spines, and curves to form a deep mantle (Figs 3 C, 3 D, 4, 5). Valves exhibit a distinct and narrow sternum with striae oriented-perpendicular thereupon (Fig. 2 A). Striae are arranged in parallel, with 19 - 22 in 10 μm. Areolae are narrow linear to elliptical, with densities ranging from 111 - 121 in 10 μm, and C-shaped areolae near the sternum (Fig. 2 C). Apical pore fields are located at both ends of the valve, with areolae extending from the valve face to the mantle face, appearing irregularly round or square and diverging towards the mantle (Figs 2 B, 3 B). The girdle bands are smooth, unperforated and numerous. However, the girdle bands treated with acidization are easy to fall off (Fig. 3 C), while those treated with critical point drying are completely preserved (Figs 4, 5). SEM of critical point drying shows that cells secrete gelatinous material via apical pore fields, connecting adjacent cells to form zigzag or straight-chain colonies (Fig. 4); some cells secrete gelatinous material via apical pore fields to form gelatinous stalks (Fig. 5).	en	Qiu, Yu, Liu, Honghan, Gao, Yahui, Liang, Junrong, Sun, Lin, Chen, Changping (2025): Psammoneis fujianensis sp. nov. (Bacillariophyceae), A New Epipsammic Diatom Species from Fujian, China. Phytotaxa 704 (1): 79-86, DOI: 10.11646/phytotaxa.704.1.7, URL: https://doi.org/10.11646/phytotaxa.704.1.7
03E48789FFF0FFB2FF71A5D033CBF986.taxon	materials_examined	Type. CHINA. Fujian Province, Quanzhou City: Sandy beach of Weitou Bay, 118 ° 34 ’ 49 ” E, 24 ° 31 ’ 07 ” N, 19. June. 2022, Collector Honghan Liu. Holotype (designated here). Slide DL 202302, deposited in the School of Life Sciences, Xiamen University, Xiamen, People’s Republic of China. Holotype specimen is illustrated in Fig. 1 E.	en	Qiu, Yu, Liu, Honghan, Gao, Yahui, Liang, Junrong, Sun, Lin, Chen, Changping (2025): Psammoneis fujianensis sp. nov. (Bacillariophyceae), A New Epipsammic Diatom Species from Fujian, China. Phytotaxa 704 (1): 79-86, DOI: 10.11646/phytotaxa.704.1.7, URL: https://doi.org/10.11646/phytotaxa.704.1.7
03E48789FFF0FFB2FF71A5D033CBF986.taxon	distribution	Distribution. The taxon is first known from the type locality, followed by its appearance on the sandy beach of Maluan Bay, Dongshan County, Fujian Province, China, on November 3, 2023.	en	Qiu, Yu, Liu, Honghan, Gao, Yahui, Liang, Junrong, Sun, Lin, Chen, Changping (2025): Psammoneis fujianensis sp. nov. (Bacillariophyceae), A New Epipsammic Diatom Species from Fujian, China. Phytotaxa 704 (1): 79-86, DOI: 10.11646/phytotaxa.704.1.7, URL: https://doi.org/10.11646/phytotaxa.704.1.7
03E48789FFF0FFB2FF71A5D033CBF986.taxon	etymology	Etymology. The epithet “ fujianensis ” derives from the site where the specimen was found twice.	en	Qiu, Yu, Liu, Honghan, Gao, Yahui, Liang, Junrong, Sun, Lin, Chen, Changping (2025): Psammoneis fujianensis sp. nov. (Bacillariophyceae), A New Epipsammic Diatom Species from Fujian, China. Phytotaxa 704 (1): 79-86, DOI: 10.11646/phytotaxa.704.1.7, URL: https://doi.org/10.11646/phytotaxa.704.1.7
