WoRMS taxon details
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Chambers nearly planispirally enrolled, two per whorl, plane of coiling in early stage changing slightly to show a sigmoid curve in cross section, later with coiling in a single plane; wall finely agglutinated, insoluble in acid; aperture rounded, at the end of a short neck, without a tooth. L. to M. Miocene; Japan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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