Rotorboides is a genus of recent (Holocene) bottom dwelling (benthic) forams from the Atlantic, Pacific and Indian Oceans, related to Rosalina.
The test is trochospiral and planoconvex, with a broadly rounded periphery and about six to nine chambers in the final whorl.
Sutures on the umbilical side are radial and deeply incised.
The test wall is calcareous, coarsely perforate on the spiral side, but imperforate adjacent to the sutures.
The aperture is an interiomarginal arch, outside the umbilicus, extending nearly to the periphery.