Guide to Delicatophycus tundraphilus
- Valve linear-lanceolate
- Valves small, < 5 µm wide
- Stria density 17-28 in 10 µm
- Proximal raphe ends simple, deflected ventrally
- Central area small, or lacking
Valves are small, linear-lanceolate and less than 5 µm wide. Striae are fine (17-28 in 10 µm) and radiate throughout. Proximal raphe ends are deflected ventrally and simple, rather than expanded or reverse-lateral. The central area is small or lacking.