Diagnosis
provided by World Register of Marine Species
Test attached, flattened, and spreading in an arcuate series, chambers broad and low, enlarging rapidly to irregularly, peripheral outline strongly lobulate; wall calcareous, distinctly perforate, with scattered much larger pores that may serve as the aperture; no primary aperture observed. Holocene; E. Pacific: off Peru at about 30 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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