Compare Kurtkrammeria weilandii
Compare
Kurtkrammeria weilandii may be distinguished from other species of Kurtkrammeria by the size and shape of the valve, spacing of the median striae, and the presence or absence of a stigma. Kurtkrammeria weilandii and other species of Kurtkrammeria have striae that are convergent at the apices. In Encyonopsis, striae are always radiate or parallel at the apices. Some species of Kurtkrammeria have a stigma; a stigma is never present in Encyonopsis. Valves of Gomphonema species are asymmetric to the transapical axis, with a head pole and a foot pole, and symmetric to the apical axis. In Kurtkrammeria, valves are asymmetric to the apical axis and symmetric to the transapical axis. If present, apical pore fields of Kurtkrammeria species are located at both poles, not just the foot pole as in Gomphonema species,
LM scalebar = 10 µm
Length Range
33.0-72.0 µm
33.0-72.0 µm
Width Range
7.5-9.7 µm
7.5-9.7 µm
Striae in 10 µm
12-14 at the valve center, 15-18 near the apices
12-14 at the valve center, 15-18 near the apices
Kurtkrammeria aequalis
Length Range
22-41 µm
22-41 µm
Width Range
5.6-7.6 µm
5.6-7.6 µm
Striae in 10 µm
12-16 at the valve center, 18-20 near the ends
12-16 at the valve center, 18-20 near the ends
Kurtkrammeria lacusglacialis
Length Range
58-80 µm
58-80 µm
Width Range
8.8-11.1 µm
8.8-11.1 µm
Striae in 10 µm
10-13 at the valve center, 16-18 near the ends
10-13 at the valve center, 16-18 near the ends
Kurtkrammeria neoamphioxys
Length Range
41-59 µm
41-59 µm
Width Range
4.9-7.6 µm
4.9-7.6 µm
Striae in 10 µm
13-15 at the valve center, 15-18 at the ends on the dorsal side
13-15 at the valve center, 15-18 at the ends on the dorsal side
Kurtkrammeria stodderi
Length Range
53-68 µm
53-68 µm
Width Range
9.2-11.2 µm
9.2-11.2 µm
Striae in 10 µm
9-11 at valve center, 11-13 at the ends (dorsal side)
9-11 at valve center, 11-13 at the ends (dorsal side)
Kurtkrammeria treinishii
Length Range
55-80 µm
55-80 µm
Width Range
7.6-10.3 µm
7.6-10.3 µm
Striae in 10 µm
12-15 at valve center, 14-17 near the apices
12-15 at valve center, 14-17 near the apices