. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 244 ANNALS OF THE SOUTH AFRICAN MUSEUM Olcostephanus uitenhagensis (Kitchin) also becomes markedly evolute on the final whorl, hence at a much later stage than O. victoris, whilst its inner whorls are more compressed, with broader, flatter flanks. It is unknown whether the inner whorls of O. uitenhagensis bear Fig. 91. Olcostephanus {Olcostephanus) schafarziki (Somogyi) ($). The holotype from Martonkut (after Somogyi 1916). x 1. Olcostephanus schafarziki (Somogyi) (Fig. 91) would also app
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 244 ANNALS OF THE SOUTH AFRICAN MUSEUM Olcostephanus uitenhagensis (Kitchin) also becomes markedly evolute on the final whorl, hence at a much later stage than O. victoris, whilst its inner whorls are more compressed, with broader, flatter flanks. It is unknown whether the inner whorls of O. uitenhagensis bear Fig. 91. Olcostephanus {Olcostephanus) schafarziki (Somogyi) ($). The holotype from Martonkut (after Somogyi 1916). x 1. Olcostephanus schafarziki (Somogyi) (Fig. 91) would also appear to be rather evolute at moderate diameters but differs from O. victoris in lacking parabolae and in the frequent bifurcation of secondaries. In this respect it closely resembles O. irregularis (Wegner), with which it may well be conspecific. Occurrence This species is currently known only from the Sundays River Formation and the Spiti Shales of Pakistan. Olcostephanus {Olcostephanus) fascigerus Spath, 1939 (?) Figs 92-97 Holcostephanus (Astieria) cf. convoluta von Koenen, Uhlig, 1903: 394, pi. 78 (fig. 1). Olcostephanus fascigerus Spath, 1939: 18, pi. 4 (figs 1-3). Fatmi, 1977: 268, pi. 3 (fig. 3). Holcostephanus uhligi Collignon, 1962: 23, fig. 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
Size: 1525px × 1639px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
