Nonionella turgida ( Williamson, 1858 )

Setoyama, Eiichi & Kaminski, Michael A., 2015, Neogene benthic foraminifera from the southern Bering Sea (IODP Expedition 323), Palaeontologia Electronica (International ed. in English) 76 (4), pp. 1-30 : 15

Nonionella turgida ( Williamson, 1858)

1858 Rotalina turgida Williamson : p. 50, pl. 4, figs. 95–97.

1884 Nonionina turgida (Williamson) ; Brady, p. 731, pl. 109, figs. 17–19.

1994 Nonionella turgida (Williamson) ; Jones, p. 108, pl. 109, figs. 17–19.

Remarks. This form is quite rare in our samples, and only broken specimens are recorded. It differs from the other species by its smaller and thinner test with more numerous, elongated chambers.