Compare Muelleria tetonensis
Compare
Muelleria agnellus has distinctly curved striae and convex valve margins. Muelleria gibbula is smaller and valve margins are convex to gibbous rather than straight. Muelleria spauldingiae has elliptic valves with convex margins. Muelleria terrestris is smaller and striae near the apices are slightly convergent rather than radiate. Muelleria portomontana has much larger valves.
LM scalebar = 10 µm
Length Range
27.2-52.6 µm
27.2-52.6 µm
Width Range
8.6-11.7 µm
8.6-11.7 µm
Striae in 10 µm
16-20 at valve center, 20-24 at the apices
16-20 at valve center, 20-24 at the apices
Muelleria agnellus
Length Range
26.9-59.6 µm
26.9-59.6 µm
Width Range
9.5-12.3 µm
9.5-12.3 µm
Striae in 10 µm
13-18 at valve center, 20-24 at the apices
13-18 at valve center, 20-24 at the apices
Muelleria gibbula
Length Range
21.3-40.1 µm
21.3-40.1 µm
Width Range
6.8-9.6 µm
6.8-9.6 µm
Striae in 10 µm
18-22 at the valve center, 22-26 at the ends
18-22 at the valve center, 22-26 at the ends
Muelleria spauldingiae
Length Range
28.8-66.2 µm
28.8-66.2 µm
Width Range
11.7-15.0 µm
11.7-15.0 µm
Striae in 10 µm
14-17 at valve center, 18-21 at the apices
14-17 at valve center, 18-21 at the apices