. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. PLEISTOCENE FORAMINIFERA FROM CAPE TOWN CITY CENTRE 147. Fig. 10. A-B. Trifarina angulosa (Williamson), same specimen, CTC 4. Both x 67. A. Side view. B. Apertural view. C-D. Bolivina sp., same specimen, CTC 3. Both x 135. C. Side view. D. Apertural view. ribbed over almost the entire exterior. Variation also occurs in the intensity of the ribs, some shells displaying few strongly developed ones, whereas others reveal many closely spaced fine ribs. Family Bolivinitidae Cushman, 1927 Genus Bolivina d'
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. PLEISTOCENE FORAMINIFERA FROM CAPE TOWN CITY CENTRE 147. Fig. 10. A-B. Trifarina angulosa (Williamson), same specimen, CTC 4. Both x 67. A. Side view. B. Apertural view. C-D. Bolivina sp., same specimen, CTC 3. Both x 135. C. Side view. D. Apertural view. ribbed over almost the entire exterior. Variation also occurs in the intensity of the ribs, some shells displaying few strongly developed ones, whereas others reveal many closely spaced fine ribs. Family Bolivinitidae Cushman, 1927 Genus Bolivina d'Orbigny, 1839 Bolivina sp. Fig. lOC-D Remarks One small test, ornamented with fine, dense pitting over the surface. The specimen shows some resemblance to Bolivina variabilis (WiUiamson), but is too juvenile a shell to make a rehable identification. Genus Brizalina Costa, 1856 Brizalina spathulata (WiUiamson, 1858) Fig. 9C Textularia variabilis Williamson var. spathulata WiUiamson, 1858: 76, pi. 6 (figs 164-165). Brizalina spathulata (Williamson) Hedley etal., 1965: 21, pi. 6 (fig. 23a-b), text-fig. 6A-G. Haynes, 1973^: 135, fig. 25 (nos 10-13). Remarks One example, rather damaged. A narrow test when compared to examples from off the Orange River, but the arrangement and coarseness of the test perforations, the sub-rounded acute margin to the test, and the angle at which the sutures decline to the margin are closely comparable. The central zig-zag suture of the Cape Town test is particularly limbate and prominent. Brizalina spathulata ranges throughout the latest Eemian and earliest Weichsehan, and the Holocene of the Orange Shelf (McMillan 19876). However,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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