halenia legrandi halenia legrandi halenia is a genus of recent discorbacean foraminifera. it contains only one species, halenia legrandi the test is free, a low trochspire with a rounded periphery; wall calcareous, monolamellar. chambers are subglobular, all visible on spiral side, only last volution visible on umbilical side; final chamber with an umbilical flap. sutures are depressed, radial on umbilical side, curved to sinuate on spiral side, with sutural slits on both sides. halenia legrandi scientific classification domain: eukaryota clade: diaphoretickes clade: sar phylum: retaria infraphylum: foraminifera class: †fusulinata order: †endothyrida family: †mstiniidae genus: †haleniaconil, 1980 species: †h. legrandi binomial name †halenia legrandiconil, 1980