Compare Platessa oblongella
Compare
Platessa lutheri and P. kingstonii also have a higher stria density on the raphe valve, as compared to the rapheless valve. These taxa, however, have a rapheless valve with a much wider axial area.
LM scalebar = 10 µm
Length Range
6-18 µm
6-18 µm
Width Range
3.7-7 µm
3.7-7 µm
Striae in 10 µm
9-12 on rapheless valve, 24-30 on raphe valve
9-12 on rapheless valve, 24-30 on raphe valve
Platessa lutheri
Length Range
8-17 µm
8-17 µm
Width Range
4.5-6.0 µm
4.5-6.0 µm
Striae in 10 µm
25–29 on raphe valve, 12–15 on rapheless valve
25–29 on raphe valve, 12–15 on rapheless valve
Platessa kingstonii
Length Range
7.4–11 µm
7.4–11 µm
Width Range
4.4–5.0 µm
4.4–5.0 µm
Striae in 10 µm
26–30 on raphe valve, 12-15 on rapheless valve
26–30 on raphe valve, 12-15 on rapheless valve