Diagnosis
provided by World Register of Marine Species
Test free, subspherical, globular proloculus followed by strongly overlapping enrolled chambers as in Sphaerammina, only the last one or two chambers visible externally; wall coarsely agglutinated with finer-grained ground mass, early chambers finer grained; aperture small, rounded to slightly elongate, bordered by short inward projecting entosolenian neck, but without an external tooth. Holocene; S. Atlantic at 80 m to 155 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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