Diagnosis
provided by World Register of Marine Species
Test ovate in outline, slightly flattened, periphery broadly rounded, early chambers quinqueloculine, later added in a single plane on alternate sides as in Spiroloculina; wall calcareous, imperforate, porcelaneous, rugose surface due to longitudinal striations; aperture terminal, ovate, with an elongate and terminally bifid tooth. Holocene; Mediterranean. (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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