Thalassionema nitzschioides
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| Taxonomic Group: | Diatom |
| Trophic Status: | Autotrophic |
| Size Range: | 2-3.5 ?m wide x 30-80 ?m long (Cupp 1943); 10-110 ?m long (Tomas 1997); 2-4 ?m wide x 10-80 ?m long (Horner 2002) |
| Key Characteristics: | Valve ends similar in shape; marginal ribs visible with light microscopy; cells in stellate and or zigzag colonies, frequently both types within a colony |
| Confused With: | Thalassionema frauenfeldii which has generally longer cells and valve ends that are slightly dissimilar |
| Toxin: | None known |