| Taxonomic Group: | Diatom | 
| Trophic Status: | Autotrophic | 
| Size Range: | 5.7-15 μm wide x 24.7-62.5 μm long (LUMCON Guide); 7-10 μm wide (Cupp 1943); 5-16 μm wide (Horner 2002, Tomas 1997) | 
| Key Characteristics: | Cells cylindrical and weakly silicified, with flat, convex, or occasionally concave valves; form stiff chains; numerous small round chloroplasts | 
| Confused With: | Possibly with Leptocylindrus minimus at first glance, which have only two chloroplasts and are more lightly silicified | 
| Toxin: | None known | 
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