Diploneis Ehrenberg ex Cleve
Frustules biraphid, elliptical to panduriform in outline. Thickened, apically-oriented canals are present on either side of the median raphe slit and are perforated by puncta. These puncta usually have a pattern of ornamentation that differs from the striae located marginal to the canals.
Light Microscope Image(s)
Each image is accompanied by the genus and species, California Academy of Sciences slide number (ie. CAS 612010), location of the specimen on the slide, and dimension in microns.