Compare

Encyonopsis microcephala and E. minuta have more dorsiventral valves and lower stria density. Encyonopsis subminuta has evenly-spaced striae throughout. Encyonopsis alpina has linear to linear-lanceolate valves with capitate ends.

LM scalebar = 10 µm
Encyonopsislacusalpinus1 Encyonopsislacusalpinus2 Encyonopsislacusalpinus5 Encyonopsislacusalpinus3 Encyonopsislacusalpinus4 Encyonopsislacusalpinus6 Encyonopsislacusalpinus7
Length Range
11.3-12.6 µm
Width Range
3.0-3.4 µm
Striae in 10 µm
26-29

Encyonopsis subminuta

Krammer and E.Reichardt 1997

Encyonemopsis Subminuta 002 Encyonemopsis Subminuta 001 Encyonemopsis Subminuta 003 Encyonemopsis Subminuta 006 Encyonemopsis Subminuta 004
Length Range
10-15 µm
Width Range
3-4 µm
Striae in 10 µm
23-27

Encyonopsis alpina

Krammer and Lange-Bert. in Krammer 1997

Encyonopsis Alpina 1 Encyonopsis Alpina 2 Encyonopsis Alpina 3 Encyonopsis Alpina 4 Encyonopsis Alpina 5 Encyonopsis Alpina 6 Encyonopsis Alpina 7
Length Range
12.9-14.4 µm
Width Range
2.9-3.6 µm
Striae in 10 µm
28-32

Encyonopsis minuta

Krammer and E.Reichardt in Krammer 1997

Encyonopsisminuta1 Encyonopsisminuta2 Encyonopsisminuta7 Encyonopsisminuta5 Encyonopsisminuta3 Encyonopsisminuta4 Encyonopsisminuta6
Length Range
11.0-14.1 µm
Width Range
3.1-3.7 µm
Striae in 10 µm
24-27

Also compare to

Encyonopsis microcephala sensu Krammer

(Grunow) Krammer

Diatoms of North America is running a fundraising campaign to keep the servers in operation. We need you to reach our $25,000 fundraising goal.

If you use and appreciate DONA, make your DONAtion today.

For the Gift Designation, type "diatom" in the search box and select "Diatom Lab Research Fund". This is the designated fund for diatoms.org.