Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India Author Symphonia, Tabita K. Author Senthil, Nathan D. text Palaeontologia Electronica 2019 55 A 2019-09-30 22 3 1 89 http://dx.doi.org/10.26879/811 journal article 10.26879/811 1094-8074 10961656 Amphistegina bicirculata Larsen, 1976 Figure 7.1-2 1976 Amphistegina bicirculata Larsen , p. 10, pl. 2, figs. 1-5; p. 16, text-figs. 9.2, 10.2. 2002 Amphistegina bicirculata Larsen ; Yordanova and Hohenegger, p. 178, pl. 31, figs. 9-12. 2007 Amphistegina bicirculata Larsen ; Yordanova and Hohenegger, p. 1276, fig. 1.11. 2012 Amphistegina bicirculata Larsen ; Debenay, p. 215. 2014 Amphistegina bicirculata Larsen ; Hohenegger, p. 723, fig. 17. 2014 Amphistegina bicirculata Larsen ; Panchang and Nigam, pl. 32, figs. 9a-b, 10a-b. Description. Test flat, lenticular, unequally biconvex or slightly spiroconvex, wall calcareous, surface smooth; chambers initially radiate, later nicely curved at the periphery, chamber arrangement low trochospiral, coiling involute; peripheral margin acute, slightly keeled, sutures slightly depressed; aperture interiomarginal, a slit-like opening, surrounded by pustules, bordered by a lip.