. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. # m Fig. 31. Comparative morphology of various species of Dutoitella. A. D. suhmi (Brady 1880), SAM-PQ-MF-0464, RV, TBD 6851, 2 916 m, SEM 2940. B. D. mimica Dingle, 1981, SAM-K5748, RV, TBD 818, Alphard Formation, Agulhas Bank, Maastrichtian III. C. D. suhmi (Brady 1880), SAM-PQ-MF-0463, LV, TBD 6851, 2 916 m, SEM 2936. D. D. neogenica (Benson 1977), USNM 190300, LV, DSDP site 22, Lower Miocene, from Benson (1977, pi. 1 (fig. 8)). E. 'Suhmicythere' sp., USNM 247710, 3 000 m off New- foundland, Quate
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. # m Fig. 31. Comparative morphology of various species of Dutoitella. A. D. suhmi (Brady 1880), SAM-PQ-MF-0464, RV, TBD 6851, 2 916 m, SEM 2940. B. D. mimica Dingle, 1981, SAM-K5748, RV, TBD 818, Alphard Formation, Agulhas Bank, Maastrichtian III. C. D. suhmi (Brady 1880), SAM-PQ-MF-0463, LV, TBD 6851, 2 916 m, SEM 2936. D. D. neogenica (Benson 1977), USNM 190300, LV, DSDP site 22, Lower Miocene, from Benson (1977, pi. 1 (fig. 8)). E. 'Suhmicythere' sp., USNM 247710, 3 000 m off New- foundland, Quaternary, from Benson et al. (1983, pi. 1 (fig. 8)); is probably conspecific with D. suhmi (Brady, 1880). F. MS of D. suhmi (Brady, 1880), SAM-PQ-MF-0465, RV, TBD 6851, 2 916 m, SEM 2944. G. MS of D. mimica Dingle, 1981, SAM-K5449, LV, TBD 818, Alphard Formation, Agulhas Bank, Maastrichtian III. Scale bars = 100 microns. outline, with contrasting eared LV and stepped RV antero-dorsal outline, of the Cretaceous (Campanian-Maastrichtian) type species (D. dutoiti Dingle, 1981). Its MS pattern is very similar to that of D. mimica Dingle, 1981 (Santonian- Maastrichtian). Dutoitella suhmi (Brady) differs from both Cretaceous species in being reticulate, having a less prominent SCT, and having the lateral ridge or node post-adjacent to the SCT replaced by three short, indistinct ribs. With the exception of the reticulation, the surface architecture, including location of pore conuli and dorsal margin spines of D. suhmi (Brady) and D. mimica, is very similar (Fig. 31). The internal features of these two species are also very close, the major difference being that the LV PTE of D. suhmi lies in a slightly more postero-ventral 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 : Th
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