Diatoms of North AmericaDiatoms of North America
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Compare Aneumastus carolinianus

(Patrick) Lange-Bert. 2001

Compare

Aneumastus carolinianus differs from both A. rostratus and A. tusculus by its acutely rounded, not protracted apices. A. carolinianus is further distinguished from A. rostratus by its paired arrangement of uniseriate areolae at center valve and less punctate areolae overall. A carolinianus can be further distinguished from A. tusculus by its narrower valves and lacking a regular stauroid central area.

LM scalebar = 10 µm
Aneumastus carolinianus LM1 Aneumastus carolinianus LM2 Aneumastus carolinianus LM3 Aneumastus carolinianus LM4 Aneumastus carolinianus LM5 Aneumastus carolinianus LM6 Aneumastus carolinianus LM7
Length Range
37.6-58.2 µm
Width Range
13.7-18.2 µm
Striae in 10 µm
11-13

Aneumastus rostratus

(Hust.) Lange-Bert. 2001

Aneumastus rostratus LM1 Aneumastus rostratus LM2 Aneumastus rostratus LM3 Aneumastus rostratus LM5 Aneumastus rostratus LM4
Length Range
43-64 µm
Width Range
16.9-19.6 µm
Striae in 10 µm
11-12

Aneumastus tusculus

(Ehrenb.) D.G.Mann and Stickle in Round, R.M.Crawford and D.G.Mann 1990

Aneumastustusculus 1 Aneumastustusculus 2 Aneumastustusculus 3 Aneumastustusculus 4 Aneumastustusculus 5 Aneumastustusculus 6
Length Range
45-67 µm
Width Range
16.5-20.7 µm
Striae in 10 µm
11-12