Ulnaria shun-biseriata sp. nov., external view, SEM A valve with valvocopula B–D details from A showing the mantle, valvocopula and ocellulimbus. Scale bars: 10 μm (A); 1 μm (C–D).
Part of: Zheng Y, Liu B, Rioual P, Long J-Y, Zhou M (2024) Ulnaria shun-biseriata sp. nov. (Bacillariophyta) from the Shun River in Hunan Province, China. PhytoKeys 246: 315-327. https://doi.org/10.3897/phytokeys.246.130942