. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 288 ANNALS OF THE SOUTH AFRICAN MUSEUM Peypouquet & Benson (1980) recorded the genus (as Quasibuntonia spp.) from their transects in the Cape and Angola basins. There are too few data points on their curves to make a detailed comparison with our results (cf. Figs 25, 26), but they suggest a decline from high values of percentage of overall ostracod populations in shallow water (20% in 450 m) to a low of 1 per cent at around 1 000 m. They recorded three sites with relatively high values (20-30%) i
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 288 ANNALS OF THE SOUTH AFRICAN MUSEUM Peypouquet & Benson (1980) recorded the genus (as Quasibuntonia spp.) from their transects in the Cape and Angola basins. There are too few data points on their curves to make a detailed comparison with our results (cf. Figs 25, 26), but they suggest a decline from high values of percentage of overall ostracod populations in shallow water (20% in 450 m) to a low of 1 per cent at around 1 000 m. They recorded three sites with relatively high values (20-30%) in depths that we classify as Lower Bathyal/uppermost Abyssal, and a deeper site (2 800 m) at 6 per cent. These data are broadly compatible with our results, but we suspect that they are too scattered to resolve the actual distribution. Benson & Sylvester-Bradley (1971) discussed the distribution of the related, relatively large species, B. sulcifera (Brady, 1887) and B. radiatopora (Seguenza, 1880), and concluded that these deep-water buntoniids represent the remnants of a 'Tethyan' fauna that is restricted to a circum-Africa water depth, km Fig. 25. Buntonia species as percentage of total ostracod fauna plotted against water depth. Values are five point running means. Depth ranges for all Buntonia species on the continental margin are shown by bars. Mean % = mean percentages of Buntonia species in total ostracod fauna for each depth 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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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
