Bolivina cf. variabilis (Williamson, 1858)

Camacho, S, Moura, D, Connor, S, Scott, DB & Boski, T, 2015, Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal), Palaeontologia Electronica 52 (4), pp. 1-37 : 23

Bolivina cf. variabilis (Williamson, 1858)

1858 cf. Textularia variabilis Williamson : p. 76, pl. 6, figs. 162, 163.

1971 cf. Brizalina variabilis (Williamson) ; Murray, p. 113, pl. 46, figs. 1-3.

2005 cf. Bolivina variabilis (Williamson) ; Debenay, Millet and Angelidis, p. 336, pl. 3, fig. 4.

2012 cf. Bolivina variabilis (Williamson) ; Milker and Schmiedl, p. 81, figs. 19.25, 19.26.

2014 cf. Bolivina variabilis (Williamson) ; GenBank ID: 212447, www.ncbi.nlm.nih.gov/Taxonomy/Browser/ wwwtax.cgi?id=212447andlvl=0

Morphological description. The wall is calcareous; test elongate, compressed, tapering regularly throughout to subacute initial end; numerous chambers increasing gradually as added; sutures depressed, straight and oblique; wall rough,

strongly perforate over full width of chambers;

aperture a narrow loop at the base of the apertural face, bordered on one margin by a thickened and imperforated rim.

Occurrence. Accessory species, occurring only at

LG site, a tidal lagoon at the estuary mouth.