Elphidium crispum (Linnaeus, 1758)

Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, Palaeontologia Electronica (55 A) 22 (3), pp. 1-89 : 24

Elphidium crispum (Linnaeus, 1758)

Figure 6.14

1758 Nautiluscrispus Linnaeus, p. 709, pl. 19, fig. 1d.

2001 Elphidium crispum (Linnaeus) ; Szarek, p. 150, pl. 28, fig. 3.

2006 Elphidium crispum (Linnaeus) ; Oflaz, p. 235, pl. 11, fig. 11.

2007 Elphidium crispum (Linnaeus) ; Talib and Farroqui, p. 21, pl.1, fig. 25a-b.

2012 Elphidium crispum (Linnaeus) ; Debenay, p. 216.

2012 Elphidium crispum (Linnaeus) ; Milker and Schmiedl, p. 120, fig. 27.13-14.

2014 Elphidium crispum (Linnaeus) ; Panchang and Nigam, pl. 38, figs. 6a-b, 7.

Description. Test large, lenticular, outline circular, wall calcareous, perforate, surface reticulate, ornamented with small pustules in the apertural region, umbilical boss with small, shallow pits; chambers many, narrow, final chambers inflated, chamber arrangement planispiral, coiling involute; periphery angular with thin carina, sutures strongly curved backwards; aperture interiomarginal, multiple, a series of openings bordered by a rim on the apertural face.

Figures

FIGURE 6. 1-2, Calcarina spengleri (Gmelin, 1791) in dorsal view (scale equals 500 μm) (1) and in ventral view (scale equals 500 μm) (2). 3, Cribroelphidium excavatum (Terquem, 1875) in ventral view (scale equals 100 μm). 4, Cribroelphidium poeyanum (d’Orbigny, 1826) in dorsal view (scale equals 100 μm). 5, Elphidiella hannai (Cushman and Grant, 1927) in ventral view (scale equals 200 μm). 6, Elphidium advenum subsp. limbatum (Chapman, 1907) in dorsal view (scale equals 200 μm). 7, Elphidium advenum var. depressulum Cushman, 1933 in ventral view (scale equals 200 μm). 8, Elphidium asiaticum Polski, 1959 in ventral view (scale equals 100 μm). 9, Elphidium botaniense Albani, 1981 in ventral view (scale equals 200 μm). 10, Elphidium carteri Hayward in Hayward, Hollis and Grenfell, 1997 in dorsal view (scale equals 100 μm). 11, Elphidium charlottense (Vella, 1957) in dorsal view (scale equals 200 μm). 12, Elphidium charlottense (Vella, 1957) in apertural view (scale equals 200 μm). 13, Elphidium craticulatum (Fichtel and Moll, 1798) in dorsal view (scale equals 400 μm). 14, Elphidium crispum (Linnaeus, 1758) in dorsal view (scale equals 300 μm). 15-16, Elphidium hispidulum Cushman, 1936 in apertural view (scale equals 300 μm) (15) and in dorsal view (scale equals 300 μm) (16). 17, Elphidium macellum (Fichtel and Moll, 1798) in dorsal view (scale equals 300 μm). 18, Elphidium somaense Takayanagi, 1955 in ventral view (scale equals 200 μm). 19, Elphidium striatopunctatum (Fichtel and Moll, 1798) in dorsal view (scale equals 400 μm). 20, Nonion fabum (Fichtel and Moll, 1798) in dorsal view (scale equals 200 μm).