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Encyonopsis montana has rhombic-lanceolate valves and higher stria density. Other large species of Kurtkrammeria (K. lacusglacialis, K. neoamphioxys, K. treinishii) have an isolated stigma in the central area. Species of Encyonema (e.g., E. hebridicum) have valves that are clearly dorsiventral and asymmetric with respect to the apical axis.

LM scalebar = 10 µm
Encyonopsis Stodderi 1 Encyonopsis Stodderi 2 Encyonopsis Stodderi 3 Encyonopsis Stodderi 4 Encyonopsis Stodderi 5 Encyonopsis Stodderi 6 Encyonopsis Stodderi 7
Length Range
53-68 µm
Width Range
9.2-11.2 µm
Striae in 10 µm
9-11 at valve center, 11-13 at the ends (dorsal side)

Kurtkrammeria lacusglacialis

(L.L.Bahls) L.L.Bahls 2015

Encyonadaensis 1 Encyonadaensis 3 Encyonadaensis 4 Encyonadaensis 5 Encyonadaensis 6
Length Range
58-80 µm
Width Range
8.8-11.1 µm
Striae in 10 µm
10-13 at the valve center, 16-18 near the ends

Encyonopsis montana

L.L.Bahls 2013

Encyonopsis Montana 1 Encyonopsis Montana 2 Encyonopsis Montana 3 Encyonopsis Montana 4 Encyonopsis Montana 5
Length Range
37-75 µm
Width Range
7.0-8.8 µm
Striae in 10 µm
19-21 at the valve center, 21-22 near the apices

Kurtkrammeria neoamphioxys

(Krammer) L.L.Bahls 2015

Encyonopsis Neoamphioxys 1 Encyonopsis Neoamphioxys 2 Encyonopsis Neoamphioxys 4 Encyonopsis Neoamphioxys 5 Encyonopsis Neoamphioxys 6
Length Range
41-59 µm
Width Range
4.9-7.6 µm
Striae in 10 µm
13-15 at the valve center, 15-18 at the ends on the dorsal side

Kurtkrammeria treinishii

(L.L.Bahls) L.L.Bahls 2015

Encyotreinischii 1 Encyotreinischii 2 Encyotreinischii 3 Encyotreinischii 4 Encyotreinischii 5 Encyotreinischii 6
Length Range
55-80 µm
Width Range
7.6-10.3 µm
Striae in 10 µm
12-15 at valve center, 14-17 near the apices

Encyonema hebridicum

(Gregory) Grunow in Cleve and J.D.Möller 1877

Encyonema hebridicum LM1 Encyonema hebridicum LM2 Encyonema hebridicum LM3 Encyonema hebridicum LM4 Encyonema hebridicum LM5 Encyonema hebridicum LM6
Length Range
29.5-63 µm
Width Range
8-11 µm
Striae in 10 µm
9-10 at the center