Rosalina floridana (Cushman, 1922a)

Figure 9.5-6

1922a Discorbis floridana Cushman, p. 39, pl. 5, figs. 11-12.

2012 Rosalina floridana (Cushman); Debenay, p. 211.

Description. Test subcircular, spiral side convex, umbilical side slightly convex, wall calcareous, coarsely perforate, umbilical region concave and imperforate; chambers on the spiral side inflated, subglobular and convex, very slightly inflated and triangular chambers on the umbilical side, gradually increasing in size, arrangement trochospiral; periphery rounded, margin subacute, slightly lobulate, sutures curved backwards and limbate on the spiral side, radial and depressed on the umbilical side; aperture interiomarginal, elongate arch on the umbilical side, bordered by a thin lip.