Diagnosis
provided by World Register of Marine Species
Test narrow, elongate, tapering at each end, chambers in a uniserial and slightly arcuate series, strongly overlapping previous chambers, the final one occupying about one-half the test length, sutures curved, strongly oblique as seen from the side, earlier septa resorbed internally; wall calcareous, hyaline, finely perforate, surface smooth; aperture terminal, radiate, eccentric in position and at the straighter test margin, provided with a slender entosolenian tube that projects inward from the aperture. Holocene; Gulf of Mexico; Atlantic. (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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