Diagnosis
provided by World Register of Marine Species
Test globular but the three or four large thick and protruding spines may give a triangular to tetrahedral appearance, early chambers of both generations in a low trochospiral coil, with pores in the spiral side and distinct canals in the umbilical side that connect to the anastomosing radial spine canals, spines arise from the earliest whorl of chambers and enlarge rapidly with test growth, postembryonic stage with numerous small chamberlets added on all sides as in Baculogypsina, the pillars projecting as pustules at the surface, intraseptal canals formed by addition of a septal flap from the new chambers; wall calcareous, compact, coarsely perforate; spiral chambers with single basal to areal aperture, later chambers with row of rounded pores adjacent to the suture and may also have areal openings. Holocene; Philippines; Okinawa. (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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