Elphidium poeyanum ( d’Orbigny, 1839a )

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 : 27

Elphidium poeyanum ( d’Orbigny, 1839a)

Figure 5.22-5.23

1839a Polystomella poyana d’Orbigny : p. 55, pl. 6, figs. 25, 26.

1930 Elphidium poeyanum (d’Orbigny) ; Cushman, p. 25, pl. 10, figs. 4, 5.

1953 Elphidium poeyanum (d’Orbigny) ; Parker, Phleger and Pierson, p. 9, pl. 3, fig. 26.

1998b Elphidium poeyanum (d’Orbigny) ; Debenay, Eichler, Duleba, Bonetti and Eichler-Coelho, p. 80, pl. IV, fig. 11.

2001 Cribroelphidium cuvillieri ( Lévy, 1966) ; Debenay, Tsakiridis, Soulard and Grossel, p. 96, pl. 6, fig. 18.

2003 Cribroelphidium poeyanum (d’Orbigny) ; Duleba and Debenay, p. 77, pl. 2, fig. 8.

2007 Cribroelphidium excavatum (Terquem, 1875) ; Cearreta, Alday, Freitas and Andrade, p. 134, pl. 1, fig. 7.

2008 Elphidium translucens Natland, 1938 ; Diz and Francés, p. 185, pl. 2, fig. 2.

Morphological description. The wall is calcareous, planispiral enrolled; test outline circular to slightly lobulate; periphery broadly rounded with no keel; eight to nine slightly inflated chambers per adult whorl, broadly finely to medium perforated;

umbilical area small, without tubercles.

Occurrence. Rare species in Guadiana Estuary only found in winter.

Figures

FIGURE 5. Scanning electron and light microscope micrographs of the foraminifera specimens. Scale bar equals 100 µm. 1- Lamarckina haliotidea (Heron-Allen and Earland, 1911) ventral view; 2-3- Asterigerinata mamilla (Williamson, 1858); 2- dorsal view; 3- ventral view; 4-5- Discorbis sp.; 4- dorsal view; 5- ventral view; 6-7- Helenina anderseni (Warren, 1957); 6- dorsal view; 7- ventral view; 8- Haynesina depressula (Walker and Jacob, 1798) side view; 9- Haynesina germanica (Ehrenberg, 1840) side view; 10- Elphidium advenum (Cushman, 1922) side view; 11- Elphidium excavatum (Terquem, 1875) side view; 12-15- Elphidium wiliamsoni Haynes, 1973; 12- side view in light microscope image; 13- side view in scanning electron image; 14- profile view in scanning electron image; 15- side view of a smaller specimen in scanning electron image; 16-18- side view of different size Elphidium gerthi Van Voorthuysen, 1957; 19-21- Elphidium oceanensis (d’Orbigny, 1826); 19- side view in scanning electron image; 20- profile view in scanning electron image; 21- side view in light microscope image; 22- Elphidium poeyanum (d’Orbigny, 1826) side view; 24-27- Ammonia sp1; 24- dorsal view; 25- profile view; 26- ventral view; 27- dorsal view in light microscope image; 28-31- Ammonia sp2 (Ammonia aberdoveyensis Haynes, 1973); 28- dorsal view; 29- profile view; 30- ventral view; 31- dorsal view in light microscope image; 32-35- Ammonia sp3 (Ammonia aberdoveyensis Haynes, 1973); 32- dorsal view; 33- profile view; 34- ventral view; 35- dorsal view in light microscope image.