Quinqueloculina sp.

Toefy, R., Gibbons, M. J. & McMillan, I. K., 2005, The foraminifera associated with the alga Gelidium pristoides, South Africa, African Invertebrates 46, pp. 1-26 : 6

Quinqueloculina sp. “A”

Fig. 2I

Description: Shape rounded. Coiling quinqueloculine. Plano-convex chamber walls, chambers inflated. Sutures depressed. Has calcareous porcelainous shell, highly polished wall and is imperforate. Width = 135 µm, height = 160 µm, width:height = 1:1.19.

Material examined: A27397.

Distribution: Sea Point, South Africa.

Remarks: Quinqueloculina sp. “A” has a smooth, highly polished imperforate shell and the test is round.These characters are similar to those of Q. dunkerquiana , Q. seminulum , Q. isabellei or Q. triangularis , however, all the chambers of Quinqueloculina sp. “A” are much more inflated and the sutures are more depressed than in all the species mentioned. The final chamber also overlaps slightly towards the aperture. Specimens were rare in the samples, and only one specimen was examined on the SEM. It was therefore difficult to determine whether this is a distinct species or merely a variation of a previously described species.

Figures

Fig. 2 A–L: (A) Marsipella sp. “A”; (B) Trochammina squamata Jones & Parker, 1860; (C, D) Quinqueloculina dunkerquiana Heron-Allen & Earland, 1930; (E) Quinqueloculina seminulum (Linné, 1758); (F) Quinqueloculina triangularis d’Orbigny, 1846; (G) Quinqueloculina undulata d’Orbigny, 1852; (H) Quinqueloculina vulgaris d’Orbigny, 1826; (I) Quinqueloculina sp. “A”; (J) Triloculina trigonula (Lamarck, 1804); (K–L) Miliolinella subrotundata (Montagu, 1803).