Two new species of Pseudogomphonema (Bacillariophyceae: Naviculales) from King George Island, Antarctica

• DOI: 10.5343/bms.2024.0125
• Publication Date: 2025-04-29T01:06:04Z
• Authors: Adil Al-Handal; Michael J Sullivan; Thomas A Frankovich; Angela K Wulf
• Keywords: George (robot)

Two new species of marine epiphytic Antarctic diatoms are described based on observations from light and electron microscopy. Pseudogomphonema minutum sp. nov. gracile were found the rhodophyte Georgiella confluens (Reinsch) Kylin in Peñon Uno, Potter Cove, King George Island, Antarctica. is characterized by small heteropolar gomphonemoid valves with filiform raphe branches that gradually curve to mantle, a complete absence pseudosepta. The central area P. nov wide reaches valve margin cingulum composed 3 open bands. its coarse striae density, linear, narrow valves, large quadrangular pseudoseptum present at foot pole evidence weakly developed head pole. There 7 cingular bands this species. Comparisons morphologically similar taxa provided.