Staurosira (C.G. Ehrenberg) D.M. Williams & F.E. Round

Description

Frustules araphid, forms chains, valves elliptical or enlarged in the center. Labiate process and interlocking spines present. Sternum narrow except in the center. Striae uniserate, areolae elliptical or linear. Apical pore fields present or greatly reduced.

Type Species: S. construens