Compare

Encyonema temperei has somewhat wider and more strongly dorsiventral valves and a more gibbous ventral margin where the central striae are about 1/3 the valve width.

Encyonema reimeri has somewhat wider and more strongly dorsiventral valves with acutely rounded apices.

Encyonema kamtschaticum and E. kamtschaticum var. parvum are smaller, with narrower apices and narrower axial and central areas.

Encyonema latum is much wider.

Encyonema nicafei and E. yellowstonianum are less dorsiventral, with flat or weakly convex ventral margins.

LM scalebar = 10 µm
Encyonema sinicum LM1 Encyonema sinicum LM2 Encyonema sinicum LM3 Encyonema sinicum LM4 Encyonema sinicum LM5
Length Range
31.6-84.8 µm
Width Range
13.6-22.6 µm
Striae in 10 µm
10-12 dorsal at valve center; 11-12 dorsal at valve apices; 8-10 ventral at valve center; 10-14 ventral at valve apices

Encyonema temperei

Krammer 1997

Encyonema temperei LM1 Encyonema temperei LM2 Encyonema temperei LM3 Encyonema temperei LM4 Encyonema temperei LM5 Encyonema temperei LM6
Length Range
39-78 µm
Width Range
19-25 µm
Striae in 10 µm
11-12

Encyonema reimeri

S.A.Spauld., Pool and S.Castro 2010

Encyonema reimeri LM1 Encyonema reimeri LM2 Encyonema reimeri LM3 Encyonema reimeri LM4 Encyonema reimeri LM5
Length Range
30-89 µm
Width Range
16-26.5 µm
Striae in 10 µm
10

Encyonema kamtschaticum var. parvum

Krammer 1997

Encyonema kamtschaticum parvum LM1 Encyonema kamtschaticum parvum LM2 Encyonema kamtschaticum parvum LM3 Encyonema kamtschaticum parvum LM4 Encyonema kamtschaticum parvum LM5 Encyonema kamtschaticum parvum LM6 Encyonema kamtschaticum parvum LM7
Length Range
23.3-55.7 µm
Width Range
7.9-12.7 µm
Striae in 10 µm
11-14 dorsal at valve center; 12-15 dorsal at valve apices; 9-11 ventral at valve center; 12-16 ventral at valve apices

Encyonema latum

Krammer 1997

Encyonema latum LM1 Encyonema latum LM2 Encyonema latum LM3 Encyonema latum LM4 Encyonema latum LM5
Length Range
50-84 µm
Width Range
22-27 µm
Striae in 10 µm
6-8

Encyonema nicafei

S.A.Spauld. 2010

Encyonema nicafei LM1 Encyonema nicafei LM2 Encyonema nicafei LM3 Encyonema nicafei LM4 Encyonema nicafei LM5 Encyonema nicafei LM6
Length Range
56-76 µm
Width Range
16.5-19 µm
Striae in 10 µm
9

Encyonema yellowstonianum

Krammer 1997

Encyonema yellowstonianum LM2 Encyonema yellowstonianum LM3 Encyonema yellowstonianum LM1
Length Range
39-75 µm
Width Range
17-23 µm
Striae in 10 µm
10-11

Also compare to

Encyonema kamtschaticum

Krammer

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