Diagnosis
provided by World Register of Marine Species
Test ovate in outline, low trochospiral, spiral side flat, the two whorls enlarging rapidly, early sutures flush and obscure, final one or two depressed and slightly oblique, umbilical side slightly convex and partially evolute, the earlier whorl visible in the open umbilicus, later chambers with short and broad umbilical flap or folium, sutures radial and depressed, periphery rounded; wall calcareous, earliest chambers not perforate, later coarsely perforate, except for the imperforate peripheral region and apertural face; aperture an equatorial and interiomarginal arch, with prominent bordering lip, extending onto the umbilical side beneath the umbilical folia. Holocene; Caribbean: off Venezuela. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.
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