Diagnosis
provided by World Register of Marine Species
Test planispiral, evolute, biumbilicate, with numerous low chambers in about two and a half whorls, increasing very little in size as added, periphery broadly rounded, margins slightly lobulate, with chambers much wider than high as seen from the periphery; later sutures slightly depressed, nearly radial; wall finely agglutinated, surface smoothly finished; aperture areal, a low oval to elliptical opening near the base of the apertural face, bordered by a slight lip. Holocene; E. Pacific, off Guadalupe Island, Mexico, at 150 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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