Cymbella subcuspidata
Terminal fissures curved towards dorsal margin
More naviculoid forms, dorsal side a little more convex than ventral side
Valves linear, narrowly elliptical, broadly elliptical or linear-elliptical
Valves broadly elliptical
Striae coarsely punctate
Raphe proximally with shepherd's crook shaped central fissure
Found in sample 1B42
(2/1, p. 734 - keys out p. 137)

















