Borgert
Diagnosis: Shell with spindle-shaped central area, open at smaller (proximal) end, with thickened rim, distally pointed, with 4 divergent ascending primary branches, forming small basket at indented base of tomato-shaped central capsule, each with single, simple, divergent, descending secondary branch, about twice as long as the central part of the shell that they surround.
Length of central area: 0.32-0.40 mm.