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
Nonionoides elongatum
(d'Orbigny, 1852)
Figure 7.16
1852
Nonionina elongata
d’Orbigny
, p. 3, fig. 4.
1999
Nonion elongatum
(d’Orbigny)
; Nigam and Khare, p. 298, pl. 6, fig. 6.
2014
Nonion elongatum
(d’Orbigny)
; Panchang and Nigam, pl. 39, fig. 12a-c.
Description.
Test elongate, biumbilicate, wall finely perforate, surface smooth, umbilical portion depressed, papillated, granular pustules to some extent along the sutures and the apertural face; chambers distinct, many, increasing rapidly in size as added, coiling involute; periphery broadly rounded, sutures distinct, slightly depressed and curved; aperture a interiomarginal, narrow, low arch opening on the apertural face.