Diagnosis
provided by World Register of Marine Species
Test small, from 0.3 mm to 1.0 mm in diameter, with few subglobular chambers increasing rapidly in size, commonly only three and a half to four per whorl, sutures depressed; wall very finely agglutinated and smoothly finished or may include some larger particles; aperture areal, a slit facing the umbilicus and bordered by a slight lip. Holocene; Gulf of Mexico; North Sea: Skagerak; Antarctic: Scotia Sea. (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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