Compare Frustulia capitata
Compare
Frustulia capitata possesses longitudinal ribs while F. creuzburgensis lacks them. The apices of F. latita and F. soror are only slightly rostrate, rather than capitate or subcapitate. Frustulia latita also has a lower stria density (30-32 in 10 µm at the center). The valve shape of F. weinholdii is nearly linear-elliptic and the striae are less dense (30-33 in 10 µm at the center) than those in F. capitata. In addition, F. weinholdii has longitudinal ribs that are incomplete on both sides of the valve.
LM scalebar = 10 µm
Length Range
26.0-43.0 µm
26.0-43.0 µm
Width Range
7.0-8.5 µm
7.0-8.5 µm
Striae in 10 µm
34-36 at the center, 35-38 at the ends
34-36 at the center, 35-38 at the ends
Frustulia creuzburgensis
Length Range
26.0-38.0 µm
26.0-38.0 µm
Width Range
6.0-8.0 µm
6.0-8.0 µm
Striae in 10 µm
24-26 at the center, 28-30 at the ends
24-26 at the center, 28-30 at the ends
Frustulia latita
Length Range
32.0-48.0 µm
32.0-48.0 µm
Width Range
8.0-10.0 µm
8.0-10.0 µm
Striae in 10 µm
30-32 at the center, 33-35 at the ends
30-32 at the center, 33-35 at the ends
Frustulia soror
Length Range
28.5-52.0 µm
28.5-52.0 µm
Width Range
7.5-9.5 µm
7.5-9.5 µm
Striae in 10 µm
34-36 at the center, 35-37 at the ends
34-36 at the center, 35-37 at the ends
Also compare to
Frustulia weinholdii
BioData Reference
Lange-Bertalot 2001 Pl 133 Fig 5-7