Diagnosis
provided by World Register of Marine Species
Test large, unilocular, cylindrical, tapering slightly at both ends; wall calcareous, hyaline radial in structure, surface smooth other than the radial ornamentation at the base; aperture terminal, of three elongate radiating slits. Holocene; tropical Pacific, at 2,988 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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