Miliolinella subrotunda (Montagu, 1803)

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 : 66

Miliolinella subrotunda (Montagu, 1803)

Figure 19.10-11

1803 Vermiculum subrotundum de Montagu , p. 521, pl. 1, fig. 4.

2003 Miliolinella subrotunda (Montagu) ; Murray, p. 15, pl. 4, fig. 6.

2006 Miliolinella subrotunda (Montagu) ; Oflaz, p. 168, pl. 11, fig. 7.

2012 Miliolinella subrotunda (Montagu) ; Debenay, p. 110.

2012 Miliolinella subrotunda (Montagu) ; Milker and Schmiedl, p. 63, fig. 16.31-32.

Description. Test subcircular, wall porcelaneous, translucent sometimes, surface smooth; chambers inflated, visible, strongly overlapping previous chambers, milioline chamber arrangement, nearly planispiral arrangement in adults; periphery rounded, sutures distinct and depressed; aperture terminal, subrounded, bordered by a distinct lip, with a low arched, broad flap-like tooth.

Figures

FIGURE 19. 1-2, Quinqueloculina undulose costata Terquem 1882 in dorsal view (scale equals 500 μm) (1) and in ventral view (scale equals 500 μm) (2). 3-4. Quinqueloculina venusta Karrer, 1868 in dorsal view (scale equals 500 μm) (3) and in ventral view (scale equals 400 μm) (4). 5, Quinqueloculina vulgaris d’Orbigny, 1826 in dorsal view (scale equals 100 μm). 6-8, Cribromiliolinella milletti (Cushman, 1954) in dorsal view (scale equals 500 μm) (6); in dorsal view (scale equals 400 μm) (7); and in dorsal view (scale equals 500 μm) (8). 9, Miliolinella circularis (Bornemann, 1855) dorsal view (scale equals 300 μm). 10-11, Miliolinella subrotunda (Montagu, 1803) in dorsal view (scale equals 100 μm) (10) and in ventral view (scale equals 200 μm) (11). 12-13, Miliolinella webbiana (d’Orbigny, 1839b) in dorsal view (scale equals 500 μm) (12) and in ventral view (scale equals 500 μm) (13). 14-16, Pseudotriloculina kerimbatica (Heron-Allen and Earland, 1939) in apertural view (scale equals 400 μm) (14); in dorsal view (scale equals 500 μm) (15); and in ventral view (scale equals 300 μm) (16). 17-18, Pseudotriloculina linneiana (d’Orbigny, 1839a) in dorsal view (scale equals 300 μm) (17) and in apertural view (scale equals 200 μm) (18).