This taxon used to be called Synedra pulchella. The frustules narrow toward the ends in girdle view. It has a linear valve tht is lanceolate and has slightly attenuated apices that are rostrate. The psuedoraphe is distinct and sometimes widens toward the central area, which is slightly swollen. The striae are punctate and parallel (Patrick and Reimer 1966).
Synonyms
Sunedra pulchella Ralfs ex Kutz., Bacill., p.68, pl. 29, fig. 87. 1844.
Ecology
This taxon is usually found in water that is fresh and has a high mineral content (Patrick and Reimer 1966).
Length is 33 to 150 micrometers (Patrick and Reimer 1966).
Width is 5 to 8 micrometers (Patrick and Reimer 1966).
Striae are 12 to 16 in 10 micrometers (Patrick and Reimer 1966).
Puncta are to in 10 micrometers (Patrick and Reimer 1966).
This image was taken using DIC.