Spiroloculina nitida d’Orbigny, 1826

Figure 21.17

1826 Spiroloculina nitida d’Orbigny, p. 298.

2002 Spiroloculina nitida d’Orbigny; Gandhi, Rajamanickam and Nigam, p. 52, pl. 1, fig. 5.

2014 Spiroloculina nitida d’Orbigny; Gandhi and Nathan, p. 925, pl. 2, fig. 1a.

Description. Test ovate, side view fusiform, wall porcelaneous, imperforate, surface smooth; chambers gently concave on the inner side, periphery broadly rounded, sutures distinct and depressed; aperture terminal, circular on a neck, bordered by a thick rim, with a simple bifid tooth.