The valve view shows isopolar ends, they are blunt, circular and sometimes slightly cuneately. The middle is pinched is. The valve view is rectangular with curved ends. The wing is narrow but more or less definite.
Found in lakes, ponds, rivers, lagoons, springs/ streams, pools, swamps, and terrestrially. pH: Acidobiontic, acidophilous, indifferent, alkailphilous, alkalibiontic. (Beaver 1981).
Surirella linearis Wm. smith 1853, 8/58 a" (non 8/58 a, a) Surirella tenella var. cinstricta Woodhead et Tweed 1960, p. 145 Surirella constricta Schumann 1862, p. 185, 8/19 ( ) Surirella linearis f. constricta(Grunow 1862) Hustedt 1957, p. 360