The canal raphe is prominent, positioned slightly eccentrically. The raphe lacks a gap in the center at the proximal raphe ends. The fibulae are distinct and regularly spaced. A conopeum is recognizable under LM as two parallel lines, each running longitudinally on either side of the canal raphe. Striae count is high (32-50 in 10 µm), so striae may not be visible in the light microscope.