Triloculina oblonga (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 : 69

Triloculina oblonga (Montagu, 1803)

Figure 20.13-14

1803 Vermiculum oblongum de Montagu , p. 522, pl. 14, fig. 9.

2003 Triloculina oblonga (Montagu) ; Javaux and Scott, p. 23, fig. 5.16-17.

2006 Triloculina oblonga (Montagu) ; Oflaz, p. 176, pl. 4, fig. 5.

2012 Triloculina oblonga (Montagu) ; Milker and Schmiedl, p. 67, fig. 17.19-20.

Description. Test oblong, basal end broad, apertural end narrow, lateral view ovate, wall calcareous, imperforate, surface smooth; chambers inflated, arranged in a triloculine plan; periphery rounded, sutures distinct, depressed; aperture terminal, subrounded, on a slightly produced neck, bordered by a thick rim, with a simple, bifid tooth.

Figures

FIGURE 20. 1, Parahauerinoides fragilissima (Brady, 1884) in dorsal view (scale equals 300 μm). 2, Pseudotriloculina sp., in dorsal view (scale equals 100 μm). 3, Pyrgo denticulata (Brady, 1884) in ventral view (scale equals 500 μm). 4. Pyrgo inornata (d’Orbigny, 1846) in ventral view (scale equals 300 μm). 5-6, Pyrgo oblonga (d’Orbigny, 1839a) in dorsal view (scale equals 300 μm) (5) and in ventral view (scale equals 300 μm) (6). 7, Pyrgo sp. in ventral view (scale equals 300 μm). 8, Pyrgo williamsoni (Silvestri, 1923) in ventral view (scale equals 300 μm). 9-10, Triloculina echinata d’Orbigny, 1826 in dorsal view (scale equals 200 μm) (9) and in ventral view (scale equals 200 μm) (10). 11-12, Triloculina insignis (Brady, 1881) in dorsal view (scale equals 300 μm) (11) and in ventral view (scale equals 200 μm) (12). 13-14, Triloculina oblonga (Montagu, 1803) in dorsal view (scale equals 300 μm) (13) and in ventral view (scale equals 300 μm) (14). 15, Triloculina schreiberiana d’Orbigny, 1839a in dorsal view (scale equals 200 μm). 16-17, Triloculina terquemiana (Brady, 1884) in lateral view (scale equals 400 μm) (16) and in dorsal view (scale equals 300 μm) (17). 18, Triloculina tricarinata d’Orbigny, 1826 in apertural view (scale equals 200 μm).