Diatoms of North AmericaDiatoms of North America
Return to overview

Compare Placoneis anglophila

(Lange-Bert.) Lange-Bert. in Metzeltin, Lange-Bert. and García-Rodríguez 2005

Compare

Placoneis gastrum has rostrate, broadly rounded apices. Placoneis anglica is larger in size (20-27 µm) and has a transverse central area. Placoneis elginensis has linear valve margins and a transverse central area.

LM scalebar = 10 µm
Placoneis anglophila LM12 Placoneis anglophila LM13 Placoneis anglophila LM14 Ill 2015 24 Iwb 3 Cl Ill 2015 24 Iwb 2 Cl Ill 2015 15 Iwb 18 Cl Shrunk
Length Range
18-21 µm
Width Range
7.5-8.5 µm
Striae in 10 µm
9-10

Placoneis gastrum

(Ehrenb.) Mereschk. 1903

Placoneis gastrum LM6 Placoneis gastrum LM5 Placoneis gastrum LM4 Placoneis gastrum LM3 Placoneis gastrum LM2 Placoneis gastrum LM1
Length Range
30.2-55.8 µm
Width Range
15.9-20.0 µm
Striae in 10 µm
7-9 near the center, up to 10 near the apices

Also compare to

Placoneis anglica

Ralfs

Placoneis gastrum

(Ehrenb.) Mereschk.

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.

Donate today