Diagnosis
provided by World Register of Marine Species
Test free, large, 1 mm to 2 mm in diameter, spherical, unilocular; wall of fine clay agglutinated on an organic base; aperture terminal, rounded, and said to be constricted within by an inner wall layer that surrounds a smaller opening. Holocene; subtropical Pacific. (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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