Spiroloculina subimpressa Parr, 1950

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 : 75

Spiroloculina subimpressa Parr, 1950

Figure 22.3-4

1950 Spiroloculina subimpressa Parr , p. 291, pl. 6, figs. 12-13.

2012 Spiroloculina subimpressa Parr ; Debenay, p. 135.

2013 Spiroloculina subimpressa Parr ; Jones, p. 35, pl. 1, fig. 14.

2014 Spiroloculina subimpressa Parr ; Panchang and Nigam, pl. 7, fig. 2a-b.

Description. Test broad, subrounded, wall porcelaneous, imperforate, surface smooth; chambers biloculine, coiling evolute; peripheral margin angular and truncated, sutures distinct; aperture terminal, round at the end of short neck, bordered by a lip, with a small bifid tooth.

Figures

FIGURE 22. 1-2, Spiroloculina parvula Chapman, 1902 in dorsal view (scale equals 300 μm) (1); and in ventral view (scale equals 300 μm) (2). 3-4, Spiroloculina subimpressa Parr, 1950 in dorsal view (scale equals 300 μm) (3) and in ventral view (scale equals 300 μm) (4). 5, Miliolid sp. in dorsal view (scale equals 200 μm). 6, Peneroplis pertusus (Forskål, 1775) in dorsal view (scale equals 500 μm). 7, Peneroplis planatus (Fichtel and Moll, 1798) in dorsal view (scale equals 500 μm). 8, Monalysidium confusa (McCulloch, 1977) in dorsal view (scale equals 500 μm). 9-10, Edentostomina cultrata (Brady, 1881) in dorsal view (scale equals 1 mm) (9) and in ventral view (scale equals 500 μm) (10). 11-12, Edentostomina rupertiana (Brady, 1881) in dorsal view (scale equals 500 μm) (11) and in dorsal view (scale equals 500 μm) (12). 13-14, Planispirinella exigua (Brady, 1879b) in dorsal view (scale equals 500 μm) (13) and in ventral view (scale equals 200 μm) (14). 15, Alveolinella quoii (d’Orbigny, 1826) in dorsal view (scale equals 500 μm). 16, Borelis melo (Fichtel and Moll, 1798) in dorsal view (scale equals 300 μm).