Stainforthia fusiformis (Williamson, 1858)

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

Stainforthia fusiformis (Williamson, 1858)

Figure 13.1

1858 Bulimina pupoides var. fusiformis Williamson , p. 63, pl. 5, figs. 129-130.

2003 Stainforthia fusiformis (Williamson) ; Murray, p. 26, figs. 10.1-10.

2010 Stainforthia fusiformis (Williamson) ; Margreth, p. 115, pl. 27, fig. 2a-c.

Description. Test small, elongate-ovate, fusiform, tapering, wall calcareous, finely perforate, surface smooth; chambers subglobose, sutures distinct and slightly depressed; aperture terminal, semi-circular opening bordered by a thick rim.

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).