Seminavis exigua sp. nov. (Bacillariophyceae), a new small diatom from southern Fujian Province, China

Abstract

This study describes the diatom species Seminavis exigua sp. nov., collected from an intertidal sandy beach in southern Fujian Province, China. A detailed description is given based on light and scanning electron microscopy observations. Seminavis exigua possesses small valves and the diagnostic features of this species include slit-like areolae, accessory rib on the primary side, raphe located very close to the ventral margin, and one to two rows of lineolae present on the ventral sides. Its morphology is comparable to that of similar species such as Seminavis strigosa (Hustedt) Danielidis & Economou-Amilli, Seminavis macilenta (Gregory) Danielidis & Mann, Amphora cymbellamphora Cholnoky, Amphora exilitata Giffen, and Amphora tenerrima Aleem & Hustedt.

Keywords:

• Bacillariophyceae
• diatom
• marine
• new taxa
• taxonomy

Acknowledgements

We would like to thank David Martin for his assistance with language editing.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was supported by the National Key Research and Development Program of China [grant number 2016YFA0601302]; the Natural Science Foundation of China [grant number 41776124]; XMU Training Program of Innovation and Enterpreneurship for Undergraduates [grant number 2018Y0758].