Beella digitata (Brady, 1879)

Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, Palaeontologia Electronica (55 A) 22 (3), pp. 1-89 : 48

Beella digitata (Brady, 1879a)

Figure 13.2-3

1879a Globigerina digitata Brady , p. 59, pl. 80, figs. 6-10.

1983 Beella digitata (Brady) ; Kennett and Srinivasan, p. 232, pl. 58, figs. 2, 6-8.

Description. Test strongly convex, wall calcareous, perforate, surface with irregular ridge-like spine bases, chambers globular initially, rapidly increasing in size as added, radially elongate and subconical final whorl, chamber arrangement trochospiral; periphery rounded, peripheral outline stellate; sutures radial, depressed; aperture umbilical, broad open arch bordered by a reverted lip, without teeth.

Figures

FIGURE 13. 1, Stainforthia fusiformis (Williamson, 1858) in dorsal view (scale equals 200 μm). 2-3, Beella digitata (Brady, 1879a) in dorsal view (scale equals 300 μm) (2) and in ventral view (scale equals 300 μm) (3). 4-5, Globigerina bulloides d’Orbigny, 1826 in dorsal view (scale equals 200 μm) (4) and in ventral view (scale equals 200 μm) (5). 6-7, Globigerina falconensis Blow, 1959 in dorsal view (scale equals 100 μm) (6) and in ventral view (scale equals 200 μm) (7). 8-9, Globigerina quinqueloba Natland, 1938 in dorsal view (scale equals 200 μm) (8) and in ventral view (scale equals 200 μm) (9). 10-11, Globigerinella calida (Parker, 1962) in dorsal view (scale equals 200 μm) (10) and in ventral view (scale equals 100 μm) (11). 12-13, Globigerinella radians (Egger, 1893) in dorsal view (scale equals 200 μm) (12) and in ventral view (scale equals 200 μm) (13). 14-15, Globigerinella siphonifera (d’Orbigny, 1839) in dorsal view (scale equals 200 μm) (14) and in ventral view (scale equals 200 μm) (15). 16, Globigerinella siphonifera (d’Orbigny, 1839) in apertural view (scale equals 400 μm). 17-18, Globigerinoides conglobata (Brady, 1879a) in dorsal view (scale equals 400 μm) (17) and in ventral view (scale equals 400 μm) (18). 19-20, Globigerinoides rubra (d’Orbigny, 1839) in dorsal view (scale equals 200 μm) (19) and in ventral view (scale equals 200 μm) (20). 21, Orbulina universa d’Orbigny, 1839 in dorsal view (scale equals 400 μm).