The valve is strongly heteropolar, outright oval with sides slightly convex to nearly straight. One pole is wide the other is narrow and peaked roundly. The gurtle view is blunt and rounded on one side and flattened on the other. The wing canal is outright and easily visible.
(Krammer and Lange-Bertalot 1988).
Surirella suecicav. grunowiCleve-Euler 1952, p. 113, fig. 1543 a Surirella suecicav. grunowif. pusilla Cleve-Euler 1952, p. 113, fig. 1543 b