Description: Valves circular, flat to slightly convex, 40– 48 µm in diameter. Areole coarse, eccentric, 6–9 in 10 µm in the center, 8–11 in 10 µm near the margin. Marginal processes 3–4 in 10 µm. Labiate process undiscernible in LM. Ecology and distribution: Marine species, rare in Potter Cove.