Diagnosis
provided by World Register of Marine Species
Test planoconvex and low trochospiral, spiral side weakly convex, evolute, about two and a half whorls of broad and low semilunate chambers, six in the final whorl, sutures curved, oblique, flush and obscure, final one or two may be slightly depressed, umbilical side flat, partially involute but with much of the penultimate whorl visible in the umbilical region, sutures curved and oblique, flush, obscure, periphery subacute to rounded, noncarinate, peripheral outline circular to ovoid, nonlobulate; wall calcareous, translucent, finely perforate on the spiral side, umbilical side imperforate or with one to a few large pores commonly aligned parallel to the intercameral sutures near the midline of the chambers; aperture a low slit extending from near the periphery along the umbilical chamber margin to the preceding suture and continuing along the spiral suture for much of the final whorl. Holocene; Caribbean Sea, off Venezuela, at 35 m to 45 m. (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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