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 Trifarina angulosa (Williamson, 1858) Figure 9.23 1858 Uvigerina angulosa Williamson , p. 67, pl. 5, fig. 140. 2003 Trifarina angulosa (Williamson) ; Murray, p. 26, fig. 10.5. 2010 Angulogerina angulosa (Williamson) ; Margreth, p. 118, pl. 29, fig. 6a-b. 2012 Trifarina angulosa (Williamson) ; Debenay, p. 182. 2012 Angulogerina angulosa (Williamson) ; Milker and Schmiedl, p. 90, fig. 21.2-4. 2014 Angulogerina angulosa (Williamson) ; Panchang and Nigam, pl. 27, fig. 22. Description. Test elongate, cross section triangular, wall calcareous, perforate, surface ornamented with thick, long striae; initial chamber arrangement triserial, later biserially arranged; periphery carinate, sutures limbate and depressed; aperture terminal, ovate, at the end of a short neck, bordered by a rim.