Diagnosis
provided by World Register of Marine Species
Test large, up to 6 mm in length, elongate, fusiform, tubular, cylindrical, or tapering and undivided, may be slightly twisted; wall thin, of agglutinated sand, sponge spicules or tests of other foraminifers, firmly cemented; apertures at the open ends of the tube. Holocene; cosmopolitan, from 108 m to 3,216 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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