Compare Seminavis eulensteinii
Seminavis robusta is smaller in length and width. It has a nearly straight to slightly inflated ventral margin, greater stria density, a narrower dorsal axial area, and longer ventral striae.
Seminavis basilica has a semi-rhombic-lanceolate valve shape, a narrower axial area, and much higher stria density.
LM scalebar = 10 µm
Length Range
75-167 µm
75-167 µm
Width Range
11.4-15.4 µm
11.4-15.4 µm
Striae in 10 µm
Dorsal: 10-11 in the center, 11 striae near the ends. Ventral: 10-11 in the center, 12 near the ends.
Dorsal: 10-11 in the center, 11 striae near the ends. Ventral: 10-11 in the center, 12 near the ends.
