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This search engine returns all specimens catalogued for a given taxon. 
Detailed information about this database 

Nitzschia sigma (Kützing)W.Smith cf.
Focal plane: focus on one pole only

standard focus
focus on one pole only
focus on one pole only


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 Search engine created by Martin Pullan using HTMLExport. Page layout by Micha Bayer and Martin Pullan, RBGE, 1999.