Test elongate, early stage triserial, later biserial. Chambers slightly inflated and strongly over-lapping, final pair comprising about two-thirds the test length, lower margin of chambers with numerous narrow bridgelike projections that cross the slightly constricted sutures; wall calcareous, finely perforate. Aperture an oblique loop in the apertural face, provided with a reduced toothplate that commences near the previous foramen and attaches to the lower part of the chamber wall, continuing to the lower border of the aperture, wjth supplementary sutural openings between the sutural bridges.