Research
| Title： | New and interesting species of the genus Gomphosinica Kociolek, You et Wang (Bacillariophyta) from Xizang Autonomous Region, China |
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| First author： | Jv, Hanxun; Jiang, Yutong; Na, Xinyuan; Kociolek, John P.; Zhu, Huan; Liu, Guoxiang; Kulikovskiy, Maxim; Li, Yanling; Fan, Yawen; Liu, Yan |
| Journal： | FOTTEA |
| Years： | 2025 |
| DOI： | 10.5507/fot.2024.012 |
| Abstract： | During the investigation of freshwater biodiversity of Xizang Autonomous Region, diatom samples were collected from several habitats and two new species were discovered and are formally described herein, namely, Gomphosinica stoermeri Liu, Kociolek et Li sp. nov., and Gomphosinica qii Liu, Kociolek et Li sp. nov. Both of these new species have biseriate striae, straight raphe ends, pseudosepta at both ends and a hooded stigma covering in the central area. Gomphosinica stoermeri can be separated from other similar species by its clavate outline, bluntly rounded headpole, rounded footpole, small and rounded central area formed by 2-4 short striae. Gomphosinica qii is relatively small, has small and more elliptical valves, small bluntly headpole and narrow footpole, round to rhombic central area formed by 2-6 short striae. Specimens which appear very similar to Gomphosinica hedinii were observed, but the outline and shape of central area do not match the original of Gomphosinica hedinii; herein we document these specimens and designate them as "Gomphosinica cf. hedinii". Gomphosinica linearis was also observed, and we provide a more detailed description of it based on LM and SEM. Differences between the two newly described species and other known species of the genus are also discussed. |
