Diatoms of North AmericaDiatoms of North America
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Compare Craticula sardiniana

Bahls 2013

Compare

Craticula acidoclinata has wider valves with narrower apices. Craticula cuspidata has wider rhombic-lanceolate valves, much narrower apices, and a central area with concave sides. Craticula johnstoniae has rostrate to subcapitate apices. Craticula pampeana has larger valves and a lower stria and areola density.

LM scalebar = 10 µm
Craticula sardiniana LM1 Craticula sardiniana LM2 Craticula sardiniana LM3 Craticula sardiniana LM6 Craticula sardiniana LM4 Craticula sardiniana LM5
Length Range
68-113 µm
Width Range
15.6-19.5 µm
Striae in 10 µm
14 (middle) to 18 (ends)

Craticula acidoclinata

Lange-Bert. and Metzeltin 1996

Cratacid1 Cratacid2 Cratacid3 Cratacid4 Cratacid5 Cratacid6 Cratacid7
Length Range
94-168 µm
Width Range
22-29 µm
Striae in 10 µm
12-14

Craticula cuspidata

(Kütz.) D.G.Mann 1990

C Cuspidata Gray 1 C Cuspidata Gray 5 C Cuspidata Gray 4 C Cuspidata Valve Forms Gray C Cuspidata Gray 3 C Cuspidata Gray 2
Length Range
95-157 µm
Width Range
24-36 µm
Striae in 10 µm
12-14 transverse, 24-26 longitudinal

Craticula johnstoniae

Bahls 2013

Craticula johnstoniae LM1 Craticula johnstoniae LM7 Craticula johnstoniae LM2 Craticula johnstoniae LM3 Craticula johnstoniae LM5 Craticula johnstoniae LM4
Length Range
78-105 µm
Width Range
18.0-19.3 µm
Striae in 10 µm
14 (center) to 17 (apices); 10-15 Heribaudii stage

Craticula pampeana

(Freng.) Lange-Bert. 2003

Craticula pampeana LM4 Craticula pampeana LM2 Craticula pampeana LM3 Craticula pampeana LM1 Craticula pampeana LM5
Length Range
139-274 µm
Width Range
29-45 µm
Striae in 10 µm
10-12