Diagnosis
provided by World Register of Marine Species
Test consisting of a loose clump of branching and anastomosing nonseptate tubules, lacking growth constrictions and without symmetry or directional growth, extremities rounded, intertubule region not sediment filled; wall stiff but flexible, with thin inner organic layer and thicker outer layer of agglutinated clay particles. Holocene; N. Pacific at 180 m to 7,298 m; equatorial Pacific at 3,270 m to 4,438 m; S. Pacific at 3,768 m to 3,804 m; E. Atlantic, at 610 m to 5,300 m; W. Atlantic at 2,200 m to 2,400 m; equatorial Atlantic at 2,610 m; Caribbean at 1,100 m to 5,656 m; and W. Indian Ocean at 3,960 m to 4,900 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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