NAVICULA MACULATA (now known as Cavinula maculata

SLIDE: W.A. FIRTH TYPE SLIDE

Early 20th C

The term maculata means spotted, and this diatom has prominent and relatively large areolae that are easily resolved by a light microscope, even with a 10x (n.a. 0.30)objective. It is a acidic freshwater diatom round in creeks in Delaware and South Carolina.