Diagnosis
provided by World Register of Marine Species
Test with early stage as in Neoconorbina, but planktonic gamont generation provided with a globular float chamber over the partially resorbed ventral walls of the spiral stage, balloon chamber with perforate wall and with multiple rimmed apertures in the polar region, imperforate walled inner float chamber fused to the remaining rims of the enrolled chambers and traversed by a broad central tube that extends from the umbilicus of the trochospiral test to the cribrate aperture of the balloon chamber. Holocene; Indian Ocean; Pacific Ocean. (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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